Narrow-bandgap materials for optoelectronics applications

Abstract

Narrow-bandgap materials possess the intriguing optical-electric properties and unique structures, which can be widely applied in the field of photonics, energy optoelectronic sensing and biomedicine, etc. Nowadays, the researches on nonlinear optical properties of narrow-bandgap materials have attracted extensive attention worldwide. In this paper, we review the progress of narrow-bandgap materials from many aspects, such as background, nonlinear optical properties, energy band structure, methods of preparation, and applications. These materials have obvious nonlinear optical characteristics and the interaction with the short pulse laser excitation shows the extremely strong nonlinear absorption characteristics, which leads to the optical limiting or saturable absorption related to Pauli blocking and excited state absorption. Especially, some of these novel narrow-bandgap materials have been utilized for the generation of ultrashort pulse that covers the range from the visible to midinfrared wavelength regions. Hence, the study on these materials paves a new way for the advancement of optoelctronics devices.

Graphical abstract

Keywords

narrow-bandgap materials / saturable absorber / ultrafast lasers / modulator / photodetectors

References

[1] K. S. Novoselov, A. K. Geim, S. V. Morozov, D. Jiang, Y. Zhang, S. V. Dubonos, I. V. Grigorieva, and A. A. Firsov, Electric field effect in atomically thin carbon films, Science 306(5696), 666 (2004)

[2] R. R. Nair, P. Blake, A. N. Grigorenko, K. S. Novoselov, T. J. Booth, T. Stauber, N. M. Peres, and A. K. Geim, Fine structure constant defines visual transparency of graphene, Science 320(5881), 1308 (2008)

[3] Z. H. Ni, H. M. Wang, J. Kasim, H. M. Fan, T. Yu, Y. H. Wu, Y. P. Feng, and Z. X. Shen, Graphene thickness determination using reflection and contrast spectroscopy, Nano Lett. 7(9), 2758 (2007)

[4] X. Du, I. Skachko, A. Barker, and E. Y. Andrei, Approaching ballistic transport in suspended graphene, Nat. Nanotechnol. 3(8), 491 (2008)

[5] K. S. Kim, Y. Zhao, H. Jang, S. Y. Lee, J. M. Kim, K. S. Kim, J. H. Ahn, P. Kim, J. Y. Choi, and B. H. Hong, Large-scale pattern growth of graphene films for stretchable transparent electrodes, Nature 457(7230), 706 (2009)

[6] A. Pospischil and T. Mueller, Optoelectronic devices based on atomically thin transition metal dichalcogenides, Appl. Sci. (Basel) 6(3), 78 (2016)

[7] P. F. Chen, N. Li, X. Z. Chen, W.-J. Ong, and X. J. Zhao, The rising star of two-dimensional black phosphorus beyond graphene: Synthesis, properties and electronic applications, 2D Materials 5, 014002 (2017)

[8] A. Zhuang, J. J. Li, Y. C. Wang, X. Wen, Y. Lin, B. Xiang, X. P. Wang, and J. Zeng, Screw-dislocation-driven bidirectional spiral growth of Bi₂Se₃ nanoplates, Angew. Chem. Int. Ed.53(25), 6425 (2014)

[9] T. Chai, X. Li, T. Feng, P. Guo, Y. Song, Y. Chen, and H. Zhang, Few-layer bismuthene for ultrashort pulse generation in a dissipative system based on an evanescent field, Nanoscale 10(37), 17617 (2018)

[10] C. Wang, L. Wang, X. Li, W. Luo, T. Feng, Y. Zhang, P. Guo, and Y. Ge, Few-layer bismuthene for femtosecond soliton molecules generation in Er-doped fiber laser, Nanotechnology 30(2), 025204 (2019)

[11] M. Chernysheva, A. Rozhin, Y. Fedotov, C. Mou, R. Arif, S. M. Kobtsev, E. M. Dianov, S. K. Turitsyn, Carbon nanotubes for ultrafast fiber lasers, Nanophotonics 6(1), 1 (2016)

[12] Q. L. Bao, H. Zhang, Y. Wang, Z. H. Ni, Y. L. Yan, Z. X. Shen, K. P. Loh, and D. Y. Tang, Atomic-layer grapheme as a saturable absorber for ultrafast pulsed lasers, Adv. Funct. Mater. 19(19), 3077 (2009)

[13] I. H. Baek, K. J. Ahn, B. J. Kang, S. Bae, B. H. Hong, D. I. Yeom, K. Lee, Y. U. Jeong, and F. Rotermund, Terahertz transmission and sheet conductivity of randomly stacked multi-layer graphene, Appl. Phys. Lett. 102(19),191109 (2013)

[14] S. Davide Di Dio Cafiso, E. Ugolotti, A. Schmidt, V. Petrov, U. Griebner, A. Agnesi, W. B. Cho, B. H. Jung, F. Rotermund, S. Bae, B. H. Hong, G. Reali, and F. Pirzio, Sub-100-fs Cr:YAG laser mode-locked by monolayer graphene saturable absorber, Opt. Lett. 38(10), 1745 (2013)

[15] E. Ugolotti, A. Schmidt, V. Petrov, J. Wan Kim, D. I. Yeom, F. Rotermund, S. Bae, B. Hee Hong, A. Agnesi, C. Fiebig, G. Erbert, X. Mateos, M. Aguiló, F. Diaz, and U. Griebner, Graphene mode-locked femtosecond Yb:KLuW laser, Appl. Phys. Lett. 101(16), 161112 (2012)

[16] K. F. Mak, J. Shan, and T. F. Heinz, Seeing many-body effects in single- and few-layer graphene: Observation of two-dimensional saddle-point excitons, Phys. Rev. Lett. 106(4), 046401 (2011)

[17] G. Demetriou, H. T. Bookey, F. Biancalana, E. Abraham, Y. Wang, W. Ji, and A. K. Kar, Nonlinear optical properties of multilayer graphene in the infrared, Opt. Express 24(12), 13033 (2016)

[18] T. Winzer, R. Ciesielski, M. Handloser, A. Comin, A. Hartschuh, and E. Malic, Microscopic view on the ultrafast photoluminescence from photoexcited graphene, Nano Lett. 15(2), 1141 (2015)

[19] K. J. Tielrooij, J. C. W. Song, S. A. Jensen, A. Centeno, A. Pesquera, A. Z. Elorza, M. Bonn, L. S. Levitov, and F. H. L. Koppens, Photoexcitation cascade and multiple hot-carrier generation in grapheme, Nat. Phys. 9, 248 (2013)

[20] M. Breusing, C. Ropers, and T. Elsaesser, Ultrafast carrier dynamics in graphite, Phys. Rev. Lett. 102(8), 086809 (2009)

[21] M. Breusing, S. Kuehn, T. Winzer, E. Malić, F. Milde, N. Severin, J. P. Rabe, C. Ropers, A. Knorr, and T. Elsaesser, Ultrafast nonequilibrium carrier dynamics in a single graphene layer, Phys. Rev. B 83(15), 153410(2011)

[22] P. A. George, J. Strait, J. Dawlaty, S. Shivaraman, M. Chandrashekhar, F. Rana, and M. G. Spencer, Ultrafast optical-pump terahertz-probe spectroscopy of the carrier relaxation and recombination dynamics in epitaxial graphene, Nano Lett. 8(12), 4248 (2008)

[23] C. H. Lui, K. F. Mak, J. Shan, and T. F. Heinz, Ultrafast photoluminescence from graphene, Phys. Rev. Lett. 105(12), 127404 (2010)

[24] L. Miao, Y. Jiang, S. Lu, B. Shi, C. Zhao, H. Zhang, and S. Wen, Broadband ultrafast nonlinear optical response of few-layers graphene: Toward the mid-infrared regime, Photon. Res. 3(5), 214 (2015)

[25] Y. Wang, H. Mu, X. Li, J. Yuan, J. Chen, S. Xiao, Q. Bao, Y. Gao, and J. He, Observation of large nonlinear responses in a graphene-Bi₂Te₃ heterostructure at a telecommunication wavelength, Appl. Phys. Lett. 108(22), 221901 (2016)

[26] Q. L. Bao, H. Zhang, Y. Wang, Z. H. Ni, Y. L. Yan, Z. X. Shen, K. P. Loh, and D. Y. Tang, Atomic-layer grapheme as a saturable absorber for ultrafast pulsed lasers, Adv. Funct. Mater. 19(19), 3077 (2009)

[27] S. R. Bongu, P. B. Bisht, R. C. K. Namboodiri, P. Nayak, S. Ramaprabhu, T. J. Kelly, C. Fallon, and J. T. Costello, Influence of localized surface plasmons on Pauli blocking and optical limiting in graphene under femtosecond pumping, J. Appl. Phys. 116(7), 073101 (2014)

[28] J. J. Dean and H. M. V. Driel, Graphene and few-layer graphite probed by second-harmonic generation: Theory and experiment, Phys. Rev. B 82(12), 3893(2010)

[29] M. Zhang, G. Li, and L. Li, Graphene nanoribbons generate a strong third-order nonlinear optical response upon intercalating hexagonal boron nitride, J. Mater. Chem. C 2(8), 1482 (2014)

[30] Q. H. Wang, K. Kalantar-Zadeh, A. Kis, J. N. Coleman, and M. S. Strano, Electronics and optoelectronics of twodimensional transition metal dichalcogenides, Nat. Nanotechnol. 7(11), 699 (2012)

[31] H. Tian, M. L. Chin, S. Najmaei, Q. Guo, F. Xia, H. Wang, and M. Dubey, Optoelectronic devices based on two-dimensional transition metal dichalcogenides, Nano Res. 9(6), 1543 (2016)

[32] J. Liu, H. Cao, B. Jiang, Y. Xue, and L. Fu, Newborn 2D materials for flexible energy conversion and storage, Science China Mater. 59(6), 459 (2016)

[33] K. F. Mak and J. Shan, Photonics and optoelectronics of 2D semiconductor transition metal dichalcogenides, Nat. Photonics 10(4), 216 (2016)

[34] R. I. Woodward and Kelleher, Saturable absorbers for fibre lasers, Appl. Sci. (Basel) 5(4), 1440 (2015)

[35] T. Shishidou, A. J. Freeman, and R. Asahi, Effect of GGA on the half-metallicity of the itinerant ferromagnet, Phys. Rev. B 64(18), 180401(2001)

[36] K．Takada, H．Sakurai, E．Takayama-Muromachi, E Izumi, R．Dilanian, and T．Sasaki, Superconductivity in two-dimensional CoO₂ layers, Nature 422(6927), 53 (2003)

[37] J. T. Jang, S. Jeong, J. W. Seo, M. C. Kim, E. Sim, Y. Oh, S. Nam, B. Park, and J. Cheon, Ultrathin zirconium disulfide nanodiscs, J. Am. Chem. Soc. 133(20), 7636 (2011)

[38] J. W. Seo, Y. W. Jun, S. W. Park, H. Nah, T. Moon, B. Park, J. G. Kim, Y. J. Kim, and J. Cheon, Twodimensional nanosheet crystals, Angew. Chem. Int. Ed. Engl. 46(46), 8828 (2007)

[39] M. R. Gao, X. Cao, Q. Gao, Y. F. Xu, Y. R. Zheng, J. Jiang, and S. H. Yu, Nitrogen-doped graphene supported CoSe₂ nanobelt composite catalyst for efficient water oxidation, ACS Nano 8(4), 3970 (2014)

[40] C. Altavilla, M. Sarno, and P. Ciambelli, A novel wet chemistry approach for the synthesis of hybrid 2D free-floating single or multilayer nanosheets of MS₂@oleylamine (M=Mo, W), Chem. Mater. 23(17), 3879 (2011)

[41] S. Jeong, D. Yoo, J. T. Jang, M. Kim, and J. Cheon, Welldefined colloidal 2-D layered transition-metal chalcogenide nanocrystals via generalized synthetic protocols, J. Am. Chem. Soc. 134(44), 18233 (2012)

[42] B. Radisavljevic, A. Radenovic, J. Brivio, V. Giacometti, and A. Kis, Single-layer MoS₂ transistors, Nat. Nanotechnol. 6(3), 147 (2011)

[43] B. W. Baugher, H. O. Churchill, Y. Yang, and P. Jarillo-Herrero, Intrinsic electronic transport properties of highquality monolayer and bilayer MoS₂, Nano Lett. 13(9), 4212 (2013)

[44] D. Lembke and A. Kis, Breakdown of high-performance monolayer MoS₂ transistors, ACS Nano 6(11), 10070 (2012)

[45] G. Eda and S. A. Maier, Two-dimensional crystals: Managing light for optoelectronics, ACS Nano 7(7), 5660 (2013)

[46] L. Yang, K. Majumdar, H. Liu, Y. Du, H. Wu, M. Hatzistergos, P. Y. Hung, R. Tieckelmann, W. Tsai, C. Hobbs, and P. D. Ye, Chloride molecular doping technique on 2D materials: WS₂ and MoS₂, Nano Lett. 14(11), 6275(2014)

[47] Y. Yoon, K. Ganapathi, and S. Salahuddin, How good can monolayer MoS₂ transistors Be? Nano Lett. 11(9), 3768 (2011)

[48] Y. J. Zhang, J. T. Ye, Y. Matsuhashi, and Y. Iwasa, Ambipolar MoS₂ thin flake transistors, Nano Lett. 12(3), 1136 (2012)

[49] K. Kaasbjerg, K. S. Thygesen, and K. W. Jacobsen, Phonon-limited mobility in n-type single-layer MoS₂ from first principles, Phys. Rev. B 85(11), 115317 (2012)

[50] B. Radisavljevic, M. B. Whitwick, and A. Kis, Correction to integrated circuits and logic operations based on singlelayer MoS₂, ACS Nano 7(4), 3729 (2013)

[51] H. Wang, L. L. Yu, Y. H. Lee, Y. M. Shi, A. Hsu, M. L. Chin, L. J. Li, M. Dubey, J. Kong, and T. Palacios, Integrated circuits based on bilayer MoS₂ transistors, Nano Lett. 12(9), 4674 (2012)

[52] H. S. Lee, S. W. Min, Y. G. Chang, M. K. Park, T. Nam, H. Kim, J. H. Kim, S. Ryu, and S. Im, MoS₂ nanosheet phototransistors with thickness-modulated optical energy gap, Nano Lett. 12(7), 3695 (2012)

[53] F. K. Perkins, A. L. Friedman, E. Cobas, P. M. Campbell, G. G. Jernigan, and B. T. Jonker, Chemical vapor sensing with monolayer MoS₂, Nano Lett. 13(2), 668 (2013)

[54] R. S. Sundaram, M. Engel, A. Lombardo, R. Krupke, A. C. Ferrari, P. Avouris, and M. Steiner, Electroluminescence in single layer MoS₂, Nano Lett. 13(4), 1416 (2013)

[55] H. Zhang, S. B. Lu, J. Zheng, J. Du, S. C. Wen, D. Y. Tang, and K. P. Loh, Molybdenum disulfide (MoS₂) as a broadband saturable absorber for ultra-fast photonics, Opt. Express 22(6), 7249 (2014)

[56] R. Hao, J. M. Jin, X. L. Peng, and E. Li, Dynamic control of wideband slow wave in graphene based waveguides, Opt. Lett. 39(11), 3094 (2014)

[57] H. Xia, H. Li, C. Lan, C. Li, X. Zhang, S. Zhang, and Y. Liu, Ultrafast erbium-doped fiber laser mode-locked by a CVD-grown molybdenum disulfide (MoS₂) saturable absorber, Opt. Express 22(14), 17341 (2014)

[58] K. Wu, X. Y. Zhang, J. Wang, X. Li, and J. P. Chen, WS2 as a saturable absorber for ultrafast photonic applications of mode-locked and Q-switched lasers, Opt. Express 23(9), 11453 (2015)

[59] P. G. Yan, A. J. Liu, Y. S. Chen, H. Chen, S. C. Ruan, C. Y. Guo, S. F. Chen, I. L. Li, H. P. Yang, J. G. Hu, and G. Z. Cao, Microfiber-based WS2-film saturable absorber for ultra-fast photonics, Opt. Mater. Express 5(3), 479 (2015)

[60] M. Liu, X. W. Zheng, Y. L. Qi, H. Liu, A. P. Luo, Z. C. Luo, W. C. Xu, C. J. Zhao, and H. Zhang, Microfiberbased few-layer MoS₂ saturable absorber for 25 GHz passively harmonic mode-locked fiber laser, Opt. Express 22(19), 22841 (2014)

[61] Z. Luo, Y. Huang, M. Zhong, Y. Li, J. Wu, B. Xu, H. Xu, Z. Cai, J. Peng, and J. Weng, 1-, 1.5-, and 2-μm fiber lasers Q-switched by a broadband few-layer MoS₂ Saturable Absorber, J. Lightwave Technol. 32(24), 4679 (2014)

[62] L. K. Li, Y. J. Yu, G. J. Ye, Q. Q. Ge, X. D. Ou, H. Wu, D. L. Feng, X. H. Chen, and Y. B. Zhang, Black phosphorus field-effect transistors, Nat. Nanotechnol. 9(5), 372 (2014)

[63] H. H. Churchill and P. Jarillo-Herrero, Phosphorus joins the family, Nat. Nanotechnol. 9(5), 330 (2014)

[64] H. Liu, A. T. Neal, Z. Zhu, Z. Luo, X. Xu, D. Tomanek, and P. D. Ye, Phosphorene: An Unexplored 2D semiconductor with a high hole mobility, ACS Nano 8(4), 4033 (2014)

[65] M. Buscema, D. J. Groenendijk, S. I. Blanter, G. A. Steele, H. S. J. van der Zant, and A. Castellanos-Gomez, Fast and broadband photoresponse of few-layer black phosphorus field-effect transistors, Nano Lett. 14(6), 3347(2014)

[66] N. Junhong, L. Young Tack, L. Jung Ah, H. Do Kyung, K. Gyu-Tae, C. Won Kook, and S. Yong-Won, Few-layer black phosphorus field-effect transistors with reduced current fluctuation, ACS Nano, 8(11), 11753 (2014)

[67] Z. B. Yang, J. H. Hao, S. G. Yuan, S. H. Lin, H. M. Yau, J. Y. Dai, and S. P. Lau, Field-effect transistors based on amorphous black phosphorus ultrathin films by pulsed laser deposition, Adv. Mater. 27(25), 3748 (2015)

[68] T. Hong, B. Chamlagain, W. Z. Lin, H. J. Chuang, M. H. Pan, Z. X. Zhou, and Y. Q. Xu, Polarized photocurrent response in black phosphorus field-effect transistors, Nanoscale 6(15), 8978 (2014)

[69] Z. Guo, S. Chen, Z. Wang, Z. Yang, F. Liu, Y. Xu, J. Wang, Y. Yi, H. Zhang, L. Liao, P. K. Chu, and X. F. Yu, Metal-ion-modified black phosphorus with enhanced stability and transistor performance, Adv. Mater. 29, (2017)

[70] Y. Zhou, M. Zhang, Z. Guo, L. Miao, S. T. Han, Z. Wang, X. Zhang, H. Zhang, and Z. Peng, Recent advances in black phosphorus-based photonics, electronics, sensors and energy devices, Mater. Horiz. 4(6), 997 (2017)

[71] M. Qiu, Z. T. Sun, D. K. Sang, X. G. Han, H. Zhang, and C. M. Niu, Current progress in black phosphorus materials and their applications in electrochemical energy storage, Nanoscale 9(36), 13384 (2017)

[72] Y. Xu, J. Yuan, K. Zhang, Y. Hou, Q. Sun, Y. Yao, S. Li, Q. Bao, H. Zhang, and Y. Zhang, Field-induced n-doping of black phosphorus for CMOS compatible 2D logic electronics with high electron mobility, Adv. Funct. Mater. 27(38), 1702211 (2017)

[73] M. Buscema, D. J. Groenendijk, S. I. Blanter, G. A. Steele, H. S. J. van der Zant, and A. Castellanos-Gomez, Fast and broadband photoresponse of few-layer black phosphorus field-effect transistors, Nano Lett. 14(6), 3347 (2014)

[74] N. Youngblood, C. Chen, S. J. Koester, and M. Li, Waveguide-integrated black phosphorus photodetector with high responsivity and low dark current, Nat. Photonics 9(4), 247 (2015)

[75] H. T. Yuan, X. G. Liu, F. Afshinmanesh, W. Li, G. Xu, J. Sun, B. Lian, A. G. Curto, G. J. Ye, Y. Hikita, Z. X. Shen, S. C. Zhang, X. H. Chen, M. Brongersma, H. Y. Hwang, and Y. Cui, Polarization-sensitive broadband photodetector using a black phosphorus vertical p–n junction, Nat. Nanotechnol. 10(8), 707 (2015)

[76] J. S. Qiao, X. H. Kong, Z. X. Hu, F. Yang, and W. Ji, High-mobility transport anisotropy and linear dichroism in few-layer black phosphorus, Nat. Commun. 5, 4475 (2014)

[77] Y. Li, S. Yang, and J. Li, Modulation of the electronic properties of ultrathin black phosphorus by strain and electrical field, J. Phys. Chem. C 118(41), 23970 (2014)

[78] J. Dai and X. C. Zeng, Bilayer phosphorene, J. Phys. Chem. Lett. 5(7), 1289 (2014)

[79] A. Zhuang, J. J. Li, Y. C. Wang, X. Wen, Y. Lin, B. Xiang, X. Wang, and J. Zeng, Screw-dislocation-driven bidirectional spiral growth of Bi₂Se₃ nanoplates, Angew. Chem. Int. Ed. Engl. 53(25), 6425 (2014)

[80] M. Z. Hasan and C. L. Kane, Topological insulators, Rev. Mod. Phys. 82(4), 3045 (2010)

[81] C. Y. Chen, Z. J. Xie, Y. Feng, H. M. Yi, A. J. Liang, S. L. He, D. X. Mou, J. F. He, Y. Y. Peng, X. Liu, Y. Liu, L. Zhao, G. D. Liu, X. L. Dong, J. Zhang, L. Yu, X. Y. Wang, Q. J. Peng, Z. M. Wang, S. J. Zhang, F. Yang, C. T. Chen, Z. Y. Xu, and X. J. Zhou, Tunable Dirac fermion dynamics in topological insulators, Sci. Rep. 3(10), 2411 (2013)

[82] C. J. Zhao, Y. H. Zou, Y. Chen, Z. T. Wang, S. B. Lu, H. Zhang, S. C. Wen, and D. Y. Tang, Wavelength-tunable picosecond soliton fiber laser with topological insulator: Bi2Se3 as a mode locker: Erratum, Opt. Express 21(1), 444 (2013)

[83] H. Zhang, X. He, W. Lin, R. Wei, F. Zhang, X. Du, G. Dong, and J. Qiu, Ultrafast saturable absorption in topological insulator Bi₂SeTe₂ nanosheets, Opt. Express 23(10), 13376 (2015)

[84] X. He, H. Zhang, W. Lin, R. Wei, J. Qiu, M. Zhang, and B. Hu, PVP-assisted solvothermal synthesis of highyielded Bi₂Te₃ hexagonal nanoplates: Application in passively Q-switched fiber laser, Sci. Rep. 5(1), 15868 (2015)

[85] H. H. Yu, H. Zhang, Y. C. Wang, C. J. Zhao, B. L. Wang, S. C. Wen, H. J. Zhang, and J. Y. Wang, Topological insulator as an optical modulator for pulsed solid-state lasers, Laser Photon. Rev. 7(6), L77 (2013)

[86] H. Huang, Y. Li, Q. Li, B. Li, Z. Song, W. Huang, C. Zhao, H. Zhang, S. Wen, D. Carroll, and G. Fang, Field electron emission of layered Bi₂Se₃ nanosheets with atomthick sharp edges, Nanoscale 6(14), 8306 (2014)

[87] Y. Tan, H. Zhang, C. Zhao, S. Akhmadaliev, S. Zhou, and F. Chen, Bi₂Se₃ Q-switched Nd:YAG ceramic waveguide laser, Opt. Lett. 40(4), 637 (2015)

[88] X. Jiang, S. Gross, H. Zhang, Z. Guo, M. J. Withford, and A. Fuerbach, Bismuth telluride topological insulator nanosheet saturable absorbers for Q-switched modelocked Tm:ZBLAN waveguide lasers, Ann. Phys. 528(7–8), 543 (2016)

[89] M. Liu, Z. R. Cai, S. Hu, A. P. Luo, C. J. Zhao, H. Zhang, W. C. Xu, and Z. C. Luo, Dissipative rogue waves induced by long-range chaotic multi-pulse interactions in a fiber laser with a topological insulator-deposited microfiber photonic device, Opt. Lett. 40(20), 4767 (2015)

[90] C. R. Ast and H. Hochst, Electronic structure of a bismuth bilayer, Phys. Rev. B 67(11), 181 (2003)

[91] Y. M. Koroteev, G. Bihlmayer, J. E. Gayone, E. V. Chulkov, S. Blugel, P. M. Echenique, and P. Hofmann, Strong spin–orbit splitting on Bi surfaces, Phys. Rev. Lett. 93(4), 046403 (2004)

[92] E. J. Tichovolsky and J. G. Mavroides, Magnetoreflection studies on the band structure of bismuth-antimony alloys, Solid State Commun. 7(13), 927 (1969)

[93] Y. Ohtsubo, L. Perfetti, M. O. Goerbig, P. Le Fevre, F. Bertran, and A. Taleb-Ibrahimi, Non-trivial surface-band dispersion on bi(111), New J. Phys. 15, 033041 (2013)

[94] L. Li, J. G. Checkelsky, Y. S. Hor, C. Uher, A. F. Hebard, R. J. Cava, and N. P. Ong, Phase transitions of Dirac electrons in bismuth, Science 321(5888), 547 (2008)

[95] S. Murakami, Quantum spin Hall effect and enhanced magnetic response by spin–orbit coupling, Phys. Rev. Lett. 97(23), 236805 (2006)

[96] J. P. Issi, Low temperature transport properties of the group V semimetals, Aust. J. Phys. 32(6), 585 (1979)

[97] P. Hofmann, The surfaces of bismuth: Structural and electronic properties, Prog. Surf. Sci. 81(5), 191 (2006)

[98] Y. Guo, Y. F. Zhang, X. Y. Bao, T. Z. Han, Z. Tang, L. X. Zhang, W. G. Zhu, E. G. Wang, Q. Niu, Z. Q. Qiu, J. F. Jia, Z. X. Zhao, and Q. K. Xue, Superconductivity modulated by quantum size effects, Science 306(5703), 1915 (2004)

[99] L. Lu, Z. M. Liang, L. M. Wu, Y. X. Chen, Y. F. Song, S. C. Dhanabalan, J. S. Ponraj, B. Q. Dong, Y. J. Xiang, F. Xing, D. Y. Fan, and H. Zhang, Few-layer bismuthene: Sonochemical exfoliation, nonlinear optics and applications for ultrafast photonics with enhanced stability, Laser Photon. Rev. 12(1), 1870012 (2018)

[100] J. Wang, Y. Hernandez, M. Lotya, J. N. Coleman, and W. J. Blau, Broadband nonlinear optical response of graphene dispersions, Adv. Mater. 21(23), 2430 (2009)

[101] H. H. Yu, X. F. Chen, H. J. Zhang, X. G. Xu, X. B. Hu, Z. P. Wang, J. Y. Wang, S. D. Zhuang, and M. H. Jiang, Large energy pulse generation modulated by grapheme epitaxially grown on silicon carbide, ACS Nano 4(12), 7582 (2010)

[102] H. Zhang, D. Tang, R. J. Knize, L. Zhao, Q. Bao, and K. P. Loh, Graphene mode locked, wavelength-tunable, dissipative soliton fiber laser, Appl. Phys. Lett. 96(11), 111112 (2010)

[103] J. Tang, Y. Chen, Y. Lin, X. Gong, J. Huang, Z. Luo, and Y. Huang, Tm³/Ho³⁺ co-doped LiGd(MoO₄)₂ crystal as laser gain medium around 20 μm, Opt. Mater. Express 2(8), 878 (2012)

[104] Z. W. Zheng, C. J. Zhao, S. B. Lu, Y. Chen, Y. Li, H. Zhang, and S. C. Wen, Microwave and optical saturable absorption in graphene, Opt. Express 20(21), 23201 (2012)

[105] E. Hendry, P. J. Hale, J. Moger, A. K. Savchenko, and S. A. Mikhailov, Coherent nonlinear optical response of graphene, Phys. Rev. Lett. 105(9), 097401 (2010)

[106] M. B. M. Krishna, V. P. Kumar, N. Venkatramaiah, R. Venkatesan, and D. N. Rao, Nonlinear optical properties of covalently linked graphene-metal porphyrin composite materials, Appl. Phys. Lett. 98(8), 081106 (2011)

[107] W. Chen, G. Wang, S. Qin, C. Wang, J. Fang, J. Qi, X. Zhang, L. Wang, H. Jia, and S. Chang, The nonlinear optical properties of coupling and decoupling grapheme layers, AIP Adv. 3(4), 042123 (2013)

[108] K. Wang, J. Wang, J. Fan, M. Lotya, A. O’Neill, D. Fox, Y. Feng, X. Zhang, B. Jiang, Q. Zhao, H. Zhang, J. N. Coleman, L. Zhang, and W. J. Blau, Ultrafast saturable absorption of two-dimensional MoS₂ nanosheets, ACS Nano 7(10), 9260 (2013)

[109] X. Zhang, S. Zhang, C. Chang, Y. Feng, Y. Li, N. Dong, K. Wang, L. Zhang, W. J. Blau, and J. Wang, Facile fabrication of wafer-scale MoS₂ neat films with enhanced third-order nonlinear optical performance, Nanoscale 7(7), 2978 (2015)

[110] A. Splendiani, L. Sun, Y. Zhang, T. Li, J. Kim, C. Y. Chim, G. Galli, and F. Wang, Emerging photoluminescence in monolayer MoS₂, Nano Lett. 10(4), 1271 (2010)

[111] A. Pulkin and O. V. Yazyev, Spin- and valley-polarized transport across line defects in monolayer MoS₂, Phys. Rev. B 93(4), 041419 (2016)

[112] Q. Ouyang, H. Yu, K. Zhang, and Y. Chen, Saturable absorption and the changeover from saturable absorption to reverse saturable absorption of MoS₂ nanoflake array films, J. Mater. Chem. C 2(31), 6319 (2014)

[113] K. G. Zhou, M. Zhao, M. J. Chang, Q. Wang, X. Z. Wu, Y. Song, and H. L. Zhang, Size-dependent nonlinear optical properties of atomically thin transition metal dichalcogenide nanosheets, Small 11(6), 694 (2015)

[114] D. Mao, Y. Wang, C. Ma, L. Han, B. Jiang, X. Gan, S. Hua, W. Zhang, T. Mei, and J. Zhao, WS₂ mode-locked ultrafast fiber laser, Sci. Rep. 5(1), 7965 (2015)

[115] R. F. Wei, H. Zhang, Z. L. Hu, T. Qiao, X. He, Ultrabroadband nonlinear saturable absorption of high-yield MoS₂ nanosheets, Nanotechnology 27(30), 305203 (2016)

[116] F. Bernard, Z. Han, S. P. Gorza, and P. Emplit, Towards mode-locked fiber laser using topological insulators, Nonlin. Photon. 5, 2012

[117] C. J. Zhao, Y. H. Zou, Y. Chen, Z. T. Wang, S. B. Lu, H. Zhang, S. C. Wen, and D. Y. Tang, Wavelengthtunable picosecond soliton fiber laser with topological insulator: Bi₂Se₃ as a mode locker, Opt. Express 20(25), 27888 (2012)

[118] C. J. Zhao, H. Zhang, X. Qi, Y. Chen, Z. T. Wang, S. C. Wen, and D. Y. Tang, Ultra-short pulse generation by a topological insulator based saturable absorber, Appl. Phys. Lett. 101(21), 118(2012)

[119] S. B. Lu, C. J. Zhao, Y. H. Zou, S. Q. Chen, Y. Chen, Y. Li, H. Zhang, S. C. Wen, and D. Y. Tang, Third order nonlinear optical property of Bi₂Se₃, Opt. Express 21(2), 2072 (2013)

[120] Z. Q. Luo, C. Liu, Y. Z. Huang, D. D. Wu, J. Y. Wu, H. Y. Xu, Z. P. Cai, Z. Q. Lin, L. P. Sun, and J. Weng, Topological-insulator passively Q-switched double-clad fiber laser at 2 μm wavelength, IEEE J. Sel. Top. Quant. 902708 2014, 20(5)

[121] M. Jung, J. Lee, J. Koo, J. Park, Y. W. Song, K. Lee, S. Lee, and J. H. Lee, A femtosecond pulse fiber laser at 1935 nm using a bulk-structured Bi₂Te₃ topological insulator, Opt. Express 22(7), 7865 (2014)

[122] B. Weitzel and H. Micklitz, Superconductivity in granular systems built from well-defined rhombohedral Bi-clusters: Evidence for Bi-surface superconductivity, Phys. Rev. Lett. 66(3), 385 (1991)

[123] L. Gui, X. Li, X. Xiao, H. Zhu, and C. Yang, Widely spaced bound states in a soliton fiber laser with grapheme saturable absorber, IEEE Photon. Technol. Lett. 25(12), 1184 (2013)

[124] L. Cheng, H. Liu, X. Tan, J. Zhang, J. Wei, and H. Lv, Thermoelectric properties of a monolayer bismuth, J. Phys. Chem. C 118(2), 904 (2014)

[125] Y. M. Koroteev, G. Bihlmayer, E. V. Chulkov, and S. Blügel, First-principles investigation of structural and electronic properties of ultrathin Bi films, Phys. Rev. B 77(4), 045428 (2008)

[126] B. Guo, S. H. Wang, Z. X. Wu, Z. X. Wang, D. H. Wang, H. Huang, F. Zhang, Y. Q. Ge, and H. Zhang, Sub-200 fs soliton mode-locked fiber laser based on bismuthene saturable absorber, Opt. Express 26(18), 22750 (2018)

[127] Q. Q. Yang, R. T. Liu, C. Huang, Y. F. Huang, L. F. Gao, B. Sun, Z. P. Huang, L. Zhang, C. X. Hu, Z. Q. Zhang, C. L. Sun, Q. Wang, Y. L. Tang, and H. L. Zhang, 2D bismuthene fabricated via acid-intercalated exfoliation showing strong nonlinear near-infrared responses for mode-locking lasers, Nanoscale 10(45), 21106 (2018)

[128] P. Zijlstra, J. W. Chon, and M. Gu, Five-dimensional optical recording mediated by surface plasmons in gold nanorods, Nature 459(7245), 410 (2009)

[129] D. Tan, Y. Yamada, S. Zhou, Y. Shimotsuma, K. Miura, and J. Qiu, Carbon nanodots with strong nonlinear optical response, Carbon 69, 638 (2014)

[130] R. L. Gieseking, S. Mukhopadhyay, C. Risko, and J. L. Brédas, Impact of the nature of the excited-state transition dipole moments on the third-order nonlinear optical response of polymethine dyes for all-optical switching applications, ACS Photon. 1(3), 261 (2014)

[131] W. Man, C. Yu, Z. Han, and W. Shuangchun, Nanosecond Q-switched erbium-doped fiber laser with wide pulse-repetition-rate range based on topological insulator, IEEE J. Quantum Electron. 50, 393 (2014)

[132] Y. Chen, C. Zhao, S. Chen, J. Du, P. Tang, G. Jiang, H. Zhang, S. Wen, and D. Tang, Large energy, wavelength widely tunable, topological insulator Q-switched erbiumdoped fiber laser, IEEE J. Sel. Top. Quantum Electron. 20(5), 315 (2014)

[133] F. Yan, W. Peng, S. Liu, T. Feng, Z. Dong, and G. K. Chang, Dual-wavelength single-longitudinal-mode tmdoped fiber laser using PM-CMFBG, IEEE Photonics Technol. Lett. 27(9), 264 (2015)

[134] C. Li, J. Liu, Z. Guo, H. Zhang, W. Ma, J. Wang, X. Xu, and L. Su, Black phosphorus saturable absorber for a diode-pumped passively Q-switched Er:CaF₂ midinfrared laser, Opt. Commun. 406, 158 (2018)

[135] P. Ge, J. LiuS. Jiang, Y. Xu, and B. Man, Compact Q-switched 2 m Tm:GdVO₄ laser with MoS₂ absorber, Photon. Res. 3(5), 256 (2015)

[136] J. Liu, J. Liu, Z. Guo, H. Zhang, W. Ma, J. Wang, and L. Su, Dual-wavelength Q-switched Er:SrF₂ laser with a black phosphorus absorber in the mid-infrared region, Opt. Express 24(26), 30289 (2016)

[137] Y. Zhao, P. L. Guo, X. H. Li, and Z. W. Jin, Ultrafast photonics application of graphdiyne in the optical communication region, Carbon 149, 336 (2019)

[138] T. C. Feng, X. H. Li, T. Chai, P. L. Guo, Y. Zhang, R. S. Liu, J. S. Liu, J. B. Lu, and Y. Q. Ge, Bismuthene nanosheets for 1-μm multipulse generation, Langmuir 36(1), 3 (2020)

[139] Z. J. Shi, W. X. Xu, X. H. Li, and Z. Hui, Cuprous sulfide for different laser pulse generation: Q-switching and mode-locking, J. Phys. Chem. C 123(46), 28370 (2019)

[140] J. Feng, X. Li, Z. Shi, C. Zheng, X. Li, D. Leng, Y. Wang, J. Liu, and L. Zhu, 2D ductile transition metal chalcogenides (TMCs): A novel hiah-performance Ag₂S nanosheets for ultrafast photonics, Adv. Opt. Mater. 8(6), 1901762 (2020)

[141] J. S. Liu, X. H. Li, Y. X. Guo, A. Qyyum, Z. J. Shi, T. C. Feng, Y. Zhang, C. X. Jiang, and X. F. Liu, SnSe₂ nanosheets for subpicosecond harmonic modelocked pulse generation, Small 15(38), 1902811 (2019)

[142] T. C. Feng, D. Zhang, X. H. Li, Q. Abdul, Z. J. Shi, J. B. Lu, P. L. Guo, Y. Zhang, J. S. Liu, and Q. J. Wang, SnS₂ nanosheets for Er-doped fiber lasers, ACS Appl. Nanomater. (Basel) 3(1), 674 (2020)

[143] X. H. Li, X. C. Yu, Z. P. Sun, Z. Y. Yan, B. Sun, Y. B. Cheng, X. Yu, Y. Zhang, and Q. J. Wang, High-power graphene mode-locked Tm/Ho co-doped fiber laser with evanescent field interaction, Sci. Rep. 5(1), 16624 (2015)

[144] X. H. Li, K. Wu, Z. P. Sun, B. Meng, Y. G. Wang, Y. S. Wang, X. C. Yu, X. Yu, Y. Zhang, P. P. Shum, and Q. J. Wang, Single-wall carbon nanotubes and graphene oxidebased saturable absorbers for low phase noise modelocked fiber lasers, Sci. Rep. 6(1), 25266 (2016)

[145] L. M. Zhao, D. Y. Tang, X. Wu, H. Zhang, and H. Y. Tam, Coexistence of polarization-locked and polarizationrotating vector solitons in a fiber laser with SESAM, Opt. Lett. 34(20), 3059 (2009)

[146] L. M. Zhao, D. Y. Tang, H. Zhang, and X. Wu, Polarization rotation locking of vector solitons in a fiber ring laser, Opt. Express 16(14), 10053 (2008)

[147] L. M. Zhao, D. Y. Tang, H. Zhang, X. Wu, and N. Xiang, Soliton trapping in fiber lasers, Opt. Express 16(13), 9528 (2008)

[148] H. Zhang, D. Y. Tang, L. M. Zhao, and H. Y. Tam, Induced solitons formed by cross-polarization coupling in a birefringent cavity fiber laser, Opt. Lett. 33(20), 2317 (2008)

[149] L. M. Zhao, D. Y. Tang, X. Wu, and H.Zhang, Dissipative soliton trapping in normal dispersion-fiber lasers, Opt. Lett. 35(11), 1902 (2010)

[150] L. M. Zhao, D. Y. Tang, H. Zhang, and X. Wu, Bunch of restless vector solitons in a fiber laser with SESAM, Opt. Express 17(10), 8103 (2009)

[151] J. Ma, Z. Qin, G. Xie, L. Qian, and D. Tang, Review of mid-infrared mode-locked laser sources in the 2.0–3.5 μm spectral region, Appl. Phys. Rev. 6(2), 021317 (2019)

[152] G. Chang and Z. Wei, Ultrafast fiber lasers: An expanding versatile toolbox, iScience 23(5) 101101 (2020)

[153] C. Shang, Y. Zhang, H. Qin, B. He, C. Zhang, J. Sun, J. Li, J. Ma, X. Ji, L. Xu, and B. Fu., Review on wavelengthtunable pulsed fiber lasers based on 2D materials, Opt. Laser Technol. 131, 106375 (2020)

[154] Y. Han, Y. Guo, B. Gao, C. Ma, H. Zhang, and H. Zhang, Generation, optimization, and application of ultrashort femtosecond pulse in mode-locked fiber lasers, Prog. Quantum Electron. 71, 100264 (2020)

[155] T. Jiang, K. Yin, C. Wang, J. You, H. Ouyang, R. Miao, C. Zhang, K. Wei, H. Li, H. Chen, R. Zhang, X. Zheng, Z. Xu, X. Cheng, and H. Zhang, Ultrafast fiber lasers mode-locked by two-dimensional materials: Review and prospect, Photon. Res. 8(1), 78 (2020)

[156] P. L. Huang, S. Lin, C. Yeh, H. Kuo, S. Huang, G. Lin, L. Li, C. Su, and W. Cheng, Stable mode-locked fiber laser based on CVD fabricated graphene saturable absorber, Opt. Express 20(3), 2460 (2012)

[157] Z. Zheng, C. Zhao, S. Lu, Y. Chen, H. Li, Y. Zhang, and S. Wen, Microwave and optical saturable absorption in graphene, Opt. Express 20(21), 23201 (2012)

[158] B. Fu, Y. Hua, X. Xiao, H. Zhu, Z. Sun, and C. Yang, Broadband graphene saturable absorber for pulsed fiber lasers at 1, 1.5, and 2 mm, IEEE J. Sel. Top. Quantum Electron. 20(5), 1100705 (2014)

[159] L. Liu, H. T. Hattori, E. G. Mironov, and A. Khaleque, Composite chromium and graphene oxide as saturable absorber in ytterbium-doped Q-switched fiber lasers, Appl. Opt. 53(6), 1173 (2014)

[160] L. Li, X. Zheng, X. Chen, M. Qi, Z. Ren, J. Bai, and Z. Sun, High-power diode-side-pumped Nd:YAG solid laser mode-locked by CVD graphene, Opt. Comm. 315, 204 (2014)

[161] X. Li, W. Zou, and J. Chen, 419 fs hybridly mode-locked Er-doped fiber laser at 212 MHz repetition rate, Opt. Lett. 39(6), 1553 (2014)

[162] Q. Wen, X. Zhang, Y. Wang, Y. Wang, and H. Niu, Passively Q-switched Nd:YAG laser with graphene oxide in heavy water, IEEE Photon. J. 6(2), 1 (2014)

[163] J. Xu, S. Wu, J. Liu, Y. Li, J. Ren, Q. H. Yang, and P. Wang, All-polarization-maintaining femtosecond fiber lasers using graphene oxide saturable absorber, IEEE Photon. Technol. Lett. 26(4), 346 (2014)

[164] X. He, D. N. Wang, and Z. B. Liu, Pulse-width tuning in a passively mode-locked fiber laser with graphene saturable absorber, IEEE Photon. Technol. Lett. 26(4), 360 (2014)

[165] Y. Chen, G. Jiang, S. Chen, Z. Guo, X. Yu, C. Zhao, H. Zhang, Q.Bao, S.Wen, D.Tang, and D.Fan, Mechanically exfoliated black phosphorus as a new saturable absorber for both Q-switching and mode-locking laser operation, Opt. Express 23(10), 12823 (2015)

[166] F. Zhang, Z. Wu, Z. Wang, D. Wang, S. Wang, and X. Xu, Strong optical limiting behavior discovered in black phosphorus, RSC Adv. 6(24), 20027 (2016)

[167] F. Zhang, Z. Wang, D. Wang, Z. Wu, S. Wang, and X. Xu, Nonlinear optical effects in nitrogen-doped graphene, RSC Adv. 6(5), 3526 (2016)

[168] J. L. Wu, B. Gu, N. Sheng, D. Liu, and Y. Cui, Enhanced optical limiting effects in a double-decker bis(phthalocyaninato) rare earth complex using radially polarized beams, Appl. Phys. Lett. 105(17), 171113 (2014)

[169] C. Zheng, W. Chen, S. Cai, X. Xiao, and X. Ye, Enhanced optical limiting properties of graphene oxide/triangular Pd nanocrystal composites, Mater. Lett. 131, 284 (2014)

[170] A. A. Ryzhov, I. M. Belousova, Y. Wang, H. Qi, and J. Wang, Optical limiting properties of a nonlinear multilayer Fabry–Perot resonator containing niobium pentoxide as nonlinear medium, Opt. Lett. 39(16), 4847 (2014)

[171] A. Diallo, S. Zongo, P. Mthunzi, S. Rehman, S. Y. Alqaradawi, W. Soboyejo, and M. Maaza, Z-scan and optical limiting properties of Hibiscus Sabdariffa dye, Appl. Phys. B 117(3), 861 (2014)

[172] I. Papagiannouli, A. B. Bourlinos, A. Bakandritsos, and S. Couris, Nonlinear optical properties of colloidal carbon nanoparticles: Nanodiamonds and carbon dots, RSC Advances 4(76), 40152 (2014)

[173] P. Aloukos, I. Papagiannouli, A. B. Bourlinos, R. Zboril, and S. Couris, Third-order nonlinear optical response and optical limiting of colloidal carbon dots, Opt. Express 22(10), 12013 (2014)

[174] M. J. Weber, D. Milam, and W. L. Smith, Nonlinear refractive index of glasses and crystals, Opt. Eng. 17(5), 463 (1978)

[175] R. Adair, L. L. Chase, and S. A. Payne, Nonlinear refractive-index measurements of glasses using three-wave frequency mixing, J. Opt. Soc. Anier. B 4(6), 875 (1987)

[176] C. Cheng, Z. Li, N. Dong, J. Wang, and F. Chen, Tin diselenide as a new saturable absorber for generation of laser pulses at 1 m, Opt. Express 25(6), 6132 (2017)

[177] S. L. Wong, H. Liu, and D. Chi, Recent progress in chemical vapor deposition growth of two-dimensional transition metal dichalcogenides, Prog. Cryst. Growth Charact. Mater. 62(3), 9 (2016)

[178] K. Yan, L. Fu, H. L. Peng, and Z. F.Liu, Designed CVD growth of graphene via process engineering, Acc. Chem. Res. 46(10), 2263 (2013)

[179] D. Hanlon, C. Backes, E. Doherty, C. S. Cucinotta, N. C. Berner, C. Boland, K. Lee, A. Harvey, P. Lynch, Z. Gholamvand, S. Zhang, K. Wang, G. Moynihan, A. Pokle, Q. M. Ramasse, N. McEvoy, W. J. Blau, J. Wang, G. Abellan, F. Hauke, A. Hirsch, S. Sanvito, D. D. O′ Regan, G. S.Duesberg, V. Nicolosi, and J. N. Coleman, Liquid exfoliation of solvent-stabilized few-layer black phosphorus for applications beyond electronics, Nat. Commun. 6(1), 8563 (2015)

[180] H. Li, G. Lu, Y. Wang, Z. Yin, C. Cong, Q. He, L. Wang, F. Ding, T. Yu, and H. Zhang, Mechanical exfoliation and characterization of single- and few-layer nanosheets of WSe₂, TaS₂, and TaSe₂, Small 9(11), 1974 (2013)

[181] A. Castellanos-Gomez, L. Vicarelli, E. Prada, J. O. Island, K. L. Narasimha-Acharya, S. I. Blanter, D. J. Groenendijk, M. Buscema, G. A. Steele, J. V. Alvarez, H. W.Zandbergen, J. J.Palacios, and H. S. J. van der Zant, Isolation and characterization of few-layer black phosphorus, 2D Mater. 1, 025001 (2014)

[182] S. S. Hong, W. Kundhikanjana, J. J. Cha, K. Lai, D. Kong, S. Meister, M. A. Kelly, Z. X. Shen, and Y. Cui, Ultrathin topological insulator Bi₂Se₃ nanoribbons exfoliated by atomic force microscopy, Nano Lett. 10(8), 3118 (2010)

[183] L. H. Li, Y. Chen, G. Behan, H. Zhang, M. Petravic, and A. M. Glushenkov, Large-scale mechanical peeling of boron nitride nanosheets by low-energy ball milling, J. Mater. Chem. 21(32), 11862 (2011)

[184] D. R. Dreyer, S. Park, C. W. Bielawski, and R. S. Ruoff, The chemistry of graphene oxide, Chem. Soc. Rev. 39(1), 228 (2010)

[185] J. M. Hughes, D. Aherne, and J. N. Coleman, Generalizing solubility parameter theory to apply to one- and two-dimensional solutes and to incorporate dipolar interactions, J. Appl. Polym. Sci. 127(6), 4483 (2013)

[186] Y. Hernandez, M. Lotya, D. Rickard, S. D. Bergin, and J. N. Coleman, Measurement of multicomponent solubility parameters for graphene facilitates solvent discovery, Langmuir 26(5), 3208 (2010)

[187] A. O’Neill, U. Khan, P. N. Nirmalraj, J. Boland, and J. N. Coleman, Graphene dispersion and exfoliation in low boiling point solvents, J. Phys. Chem. C 115(13), 5422 (2011)

[188] A. B. Bourlinos, V. Georgakilas, R. Zboril, T. A.Steriotis, and A. K. Stubos, Liquid-phase exfoliation of graphite towards solubilized graphenes, Small 5(16), 1841 (2009)

[189] G. Z. Magda, J. Peto, G. Dobrik, C. Hwang, L. P. Biro, and L. Tapaszto, Exfoliation of large-area transition metal chalcogenide single layers, Sci. Rep. 5(1), 14714 (2015)

[190] J. Zheng, H. Zhang, S. Dong, Y. Liu, C. T. Nai, H. S. Shin, H. Y. Jeong, B. Liu, and K. P. Loh, High yield exfoliation of two-dimensional chalcogenides using sodium naphthalenide, Nat. Commun. 5(1), 2995 (2014)

[191] G. Cunningham, M. Lotya, C. S. Cucinotta, S. Sanvito, S. D. Bergin, R. Menzel, M. S. P.Shaffer, and J. N. Coleman, Solvent exfoliation of transition metal dichalcogenides: Dispersibility of exfoliated nanosheets varies only weakly between compounds, ACS Nano 6(4), 3468 (2012)

[192] J. R. Brent, N. Savjani, E. A. Lewis, S. J. Haigh, D. J. Lewis, and P. O′ Brien, Production of few-layer phosphorene by liquid exfoliation of black phosphorus, Chem. Commun. (Camb.) 50(87), 13338 (2014)

[193] J. Kang, J. D. Wood, S. A. Wells, J. H. Lee, X. L. Liu, K. S.Chen, and M. C. Hersam, Solvent exfoliation of electronic-grade, two-dimensional black phosphorus, ACS Nano 9(4), 3596 (2015)

[194] Y. Lin, T. V. Williams, and J. W. Connell, Soluble, exfoliated hexagonal boron nitride nanosheets, J. Phys. Chem. Lett. 1(1), 277 (2010)

[195] D. Yoo, M. Kim, S. Jeong, J. Han, and J. Cheon, Chemical synthetic strategy for single-layer transition-metal chalcogenides, J. Am. Chem. Soc. 136(42), 14670 (2014)

[196] A. N. Obraztsov, Making graphene on a large scale, Nat. Nanotechnol. 4(4), 212 (2009)

[197] T. Niu, M. Zhou, J. Zhang, Y. Feng, and W. Chen, Growth intermediates for CVD graphene on Cu(111): Carbon clusters and defective graphene, J. Am. Chem. Soc. 135(22), 8409 (2013)

[198] S. Tang, H. Wang, H. S. Wang, Q. Sun, X. Zhang, C. Cong, H. Xie, X. Liu, X. Zhou, F. Huang, X. Chen, T. Yu, F. Ding, X. Xie, and M. Jiang, Silane-catalysed fast growth of large single-crystalline graphene on hexagonal boron nitride, Nat. Commun. 6(1), 6499 (2015)

[199] Y. Shi, C. Hamsen, X. Jia, K. K. Kim, A. Reina, M. Hofmann, A. L. Hsu, K. Zhang, H. Li, Z. Y. Juang, M. S. Dresselhaus, L. J. Li, and J. Kong, Synthesis of fewlayer hexagonal boron nitride thin film by chemical vapor deposition, Nano Lett. 10(10), 4134 (2010)

[200] S. Bae, H. Kim, Y. Lee, X. Xu, J. S. Park, Y. Zheng, J. Balakrishnan, T. Lei, H. Ri Kim, Y. I. Song, Y.J. Kim, K. S. Kim, B. Özyilmaz, J.H. Ahn, B. H. Hong, and S. Iijima., Roll-to-roll production of 30-inch graphene films for transparent electrodes, Nat. Nanotechnol. 5(8), 574 (2010)

[201] Q. Yu, L. A. Jauregui, W. Wu, R. Colby, J. Tian, Z. Su, H. Cao, Z. Liu, D. Pandey, D. Wei, T. F. Chung, P. Peng, N. P. Guisinger, E. A. Stach, J. Bao, S. S. Pei, and Y. P. Chen, Control and characterization of individual grains and grain boundaries in graphene grown by chemical vapour deposition, Nat. Mater. 10(6), 443 (2011)

[202] Y. Zhang, Y. F. Zhang, Q. Q. Ji, J. Ju, H. T. Yuan, J. P. Shi, T. Gao, D. L. Ma, M. X. Liu, Y. B. Chen, X. J. Song, H. Y. Hwang, Y. Cui, and Z. F. Liu, Controlled growth of high-quality monolayer WS₂ layers on sapphire and imaging its grain boundary, ACS Nano 7(10), 8963 (2013)

[203] Y. Shi, W. Zhou, A. Y. Lu, W. Fang, Y. H. Lee, A. L. Hsu, S. M. Kim, K. K. Kim, H. Y. Yang, L. J. Li, J. C. Idrobo, and J. Kong, van der Waals epitaxy of MoS₂ layers using graphene as growth templates, Nano Lett. 12(6), 2784 (2012)

[204] C. Cong, J. Shang, X. Wu, B. Cao, N. Peimyoo, C. Qiu, L. Sun, and T. Yu, Synthesis and optical properties of largearea single-crystalline 2D semiconductor WS₂ monolayer from chemical vapor deposition, Adv. Opt. Mater. 2(2), 131 (2014)

[205] W. W. Piper and S. J. Polich, Vapor‐phase growth of single crystals of II–VI compounds, J. Appl. Phys. 32(7), 1278 (1961)

[206] H. Li, J. Cao, W. Zheng, Y. Chen, D. Wu, W. Dang, K. Wang, H. Peng, and Z. Liu, Controlled synthesis of topological insulator nanoplate arrays on mica, J. Am. Chem. Soc. 134(14), 6132 (2012)

[207] Z. H. Sun and H. X. Chang, Graphene and graphenelike two-dimensional materials in photodetection: Mechanisms and methodology, ACS Nano 8(5), 4133 (2014)

[208] D. Kong, W. Dang, J. J. Cha, H. Li, S. Meister, H. Peng, Z.Liu, and Y. Cui, Few-layer nanoplates of Bi₂Se₃ and Bi₂Te₃ with highly tunable chemical potential, Nano Lett. 10(6), 2245 (2010)

[209] K. K. Kim, A. Hsu, X. Jia, S. M. Kim, Y. Shi, M. Hofmann, D. Nezich, J. F. Rodriguez-Nieva, M. Dresselhaus, T. Palacios, and J. Kong, Synthesis of monolayer hexagonal boron nitride on Cu foil using chemical vapor deposition, Nano Lett. 12(1), 161 (2012)

[210] P. Sutter, J. Lahiri, P. Albrecht, and E. Sutter, Chemical vapor deposition and etching of high-quality monolayer hexagonal boron nitride films, ACS Nano 5(9), 7303 (2011)

[211] K. H. Lee, H. J. Shin, J. Lee, I. Y. Lee, G. H. Kim, J. Y. Choi, and S. W. Kim, Large-scale synthesis of highquality hexagonal boron nitride nanosheets for large-area graphene electronics, Nano Lett. 12(2), 714 (2012)

[212] K. Ueno, K. Saiki, T. Shimada, and A. Koma, Epitaxial growth of transition metal dichalcogenides on cleaved faces of mica, J. Vac. Sci. Technol. A 8(1), 68 (1990)

[213] Y. C. Lin, C. Y. Chang, R. K. Ghosh, J. Li, H. Zhu, R. Addou, B. Diaconescu, T. Ohta, X. Peng, N. Lu, M. J. Kim, J. T. Robinson, R. M. Wallace, T. S. Mayer, S. Datta, L. J. Li, and J. A. Robinson, Atomically thin heterostructures based on single-layer tungsten diselenide and graphene, Nano Lett. 14(12), 6936 (2014)

[214] W. Yang, G. Chen, Z. Shi, C. C. Liu, L. Zhang, G. Xie, M. Cheng, D. Wang, R. Yang, D. Shi, K. Watanabe, T. Taniguchi, Y. Yao, Y. Zhang, and G. Zhang, Epitaxial growth of single-domain graphene on hexagonal boron nitride, Nat. Mater. 12(9), 792 (2013)

[215] P. Yan, H. Chen, J. Yin, Z. Xu, J. Li, Z. Jiang, W. Zhang, J. Wang, I. L. Li, Z. Sun, and S. Ruan, Largearea tungsten disulfide for ultrafast photonics, Nanoscale 9(5), 1871 (2017)

[216] A. Azizi, S. Eichfeld, G. Geschwind, K. H. Zhang, B. Jiang, D. Mukherjee, L. Hossain, A. F.Piasecki, B. Kabius, J. A. Robinson, and N. Alem, Freestanding van der Waals heterostructures of graphene and transition metal dichalcogenides, ACS Nano 9(5), 4882 (2015)

[217] X. Liu, I. Balla, H. Bergeron, G. P. Campbell, M. J. Bedzyk, and M. C. Hersam, Rotationally commensurate growth of MoS₂ on epitaxial graphene, ACS Nano 10(1), 1067 (2016)

[218] Y. F. Song, H. Zhang, D. Y. Tang, and D. Y. Shen, Polarization rotation vector solitons in a graphene mode-locked fiber laser, Opt. Express 20(24), 27283 (2012)

[219] Y. Jiang, L. Miao, G. Jiang, Y. Chen, X. Qi, X. F. Jiang, H. Zhang, and S. Wen, Broadband and enhanced nonlinear optical response of MoS₂/graphene nanocomposites for ultrafast photonics applications, Sci. Rep. 5(1), 16372 (2015)

[220] G. Zheng, Y. Chen, H. Huang, C. Zhao, S. Lu, S. Chen, H. Zhang, and S. Wen, Improved transfer quality of CVDgrown graphene by ultrasonic processing of target substrates: Applications for ultra-fast laser photonics, ACS Appl. Mater. Interfaces 5(20), 10288 (2013)

[221] Z. T.Wang, Y. Chen, C. J.Zhao, H. Zhang, and S. C.Wen, Switchable dual-wavelength synchronously Qswitched erbium-doped fiber laser based on graphene saturable absorber, IEEE Photon. J. 4(3), 869 (2012)

[222] Q. Bao, H. Zhang, Y. Wang, Z. Ni, Y. Yan, Z. X.Shen, K. P.Loh, and D. Y.Tang, Atomic-layer graphene as a saturable absorber for ultrafast pulsed lasers, Adv. Funct. Mater. 19(19), 3077 (2009)

[223] M. Zhang, E. J. R.Kelleher, F. Torrisi, Z. Sun, T. Hasan, D. Popa, F. Wang, A. C.Ferrari, S. V.Popov, and J. R.Taylor, Tm-doped fiber laser mode-locked by graphenepolymer composite, Opt. Express 20(22), 25077 (2012).

[224] D. Popa, Z. Sun, T. Hasan, F. Torrisi, F. Wang, and A. C.Ferrari, Graphene Q-switched, tunable fiber laser, Appl. Phys. Lett. 98(7), 073106 (2011)

[225] X. Liu, Q. Guo, and J. Qiu, Emerging low-dimensional materials for nonlinear optics and ultrafast photonics, Adv. Mater. 29(14), 1605886 (2017)

[226] S. Wang, H. Yu, H. Zhang, A. Wang, M. Zhao, Y. Chen, L. Mei, and J. Wang, Broadband few-layer MoS₂ saturable absorbers, Adv. Mater. 26(21), 3538 (2014)

[227] H. Chen, X. Wen, J. Zhang, T. Wu, Y. Gong, X. Zhang, J. Yuan, C. Yi, J. Lou, P. M.Ajayan, W. Zhuang, G. Zhang, and J. Zheng, Ultrafast formation of interlayer hot excitons in atomically thin MoS₂/WS₂ heterostructures, Nat. Commun. 7(1), 12512 (2016)

[228] P. Yan, H. Chen, J. Yin, Z. Xu, J. Li, Z. Jiang, W. Zhang, J. Wang, I. L.Li, Z. Sun, and S. Ruan, Largearea tungsten disulfide for ultrafast photonics, Nanoscale 9(5), 1871 (2017)

[229] X. Li, S. Zhang, Y. Hao, and Z. Yang, Pulse bursts with a controllable number of pulses from a mode-locked Ybdoped all fiber laser system, Opt. Express 22(6), 6699 (2014)

[230] Z. Wang, Y. Xu, S. C.Dhanabalan, J. Sophia, C. Zhao, C. Xu, Y. Xiang, J. Li, and H. Zhang, Black phosphorus quantum dots as an efficient saturable absorber for bound soliton operation in an erbium doped fiber laser, IEEE Photonics J. 8(5), 1503310 (2016)

[231] J. Ma, S. Lu, Z. Guo, X. Xu, H. Zhang, D. Tang, and D. Fan, Few-layer black phosphorus based saturable absorber mirror for pulsed solid-state lasers, Opt. Express 23(17), 22643 (2015)

[232] Y. Song, S. Chen, Q. Zhang, L. Li, L. Zhao, H. Zhang, and D. Tang, Vector soliton fiber laser passively mode locked by few layer black phosphorus-based optical saturable absorber, Opt. Express 24(23), 25933 (2016)

[233] Y. Xu, X. F.Jiang, Y. Ge, Z. Guo, Z. Zeng, Q. H.Xu, H. Zhang, X. F. Yu, and D. Fan, Size-dependent nonlinear optical properties of black phosphorus nanosheets and their applications in ultrafast photonics, J. Mater. Chem. C 5(12), 3007 (2017)

[234] J. Liu, J. Liu, Z. Guo, H. Zhang, W. Ma, J. Wang, and L. Su, Dual-wavelength Q-switched Er:SrF₂ laser with a black phosphorus absorber in the mid-infrared region, Opt. Express 24(26), 30289 (2016)

[235] J. Du, M. Zhang, Z. Guo, J. Chen, X. Zhu, G. Hu, P. Peng, Z. Zheng, and H. Zhang, Phosphorene quantum dot saturable absorbers for ultrafast fiber lasers, Sci. Rep. 7(1), 42357 (2017)

[236] Y. Wang, J. Li, L. Han, R. Lu, Y. Hu, Z. Li, and Y. Liu, Q-switched Tm³⁺-doped fiber laser with a microfiber based black phosphorus saturable absorber, Laser Phys. 26(6), 065104 (2016)

[237] Y. Zhang, X. Li, A. Qyyum, T. Feng, P. Guo, J. Jiang, and H. Zheng, PbS nanoparticles for ultrashort pulse generation in optical communication region, Particle & Particle Systems Characterization 35(11), 1800341 (2018)

[238] L. Yun, Y. Qiu, C. Yang, J. Xing, K. Yu, X. Xu, and W. Wei, PbS quantum dots as a saturable absorber for ultrafast laser, Photon. Res. 6(11), 1028 (2018)

[239] J. Liu, H. Huang, F. Zhang, Z. Zhang, J. Liu, H. Zhang, and L. Su, Bismuth nanosheets as a Q-switcher for a midinfrared erbium-doped SrF₂ laser, Photon. Res. 6(8), 762 (2018)

[240] M. Pumera and Z. Sofer, 2D monoelemental arsenene, antimonene, and bismuthene: Beyond black phosphorus, Adv. Mater. 29(21), 1605299 (2017)

[241] L. Lu, W. Wang, L. Wu, X. Jiang, Y. Xiang, J. Li, D. Fan, and H. Zhang, All-optical switching of two continuous waves in few layer bismuthene based on spatial crossphase modulation, ACS Photon. 4(11), 2852 (2017)

[242] Q. Wang, Y. Chen, G. Jiang, L. Miao, C. Zhao, X. Fu, S. Wen, and H. Zhang, Drop-casted self-assembled topological insulator membrane as an effective saturable absorber for ultrafast laser photonics, IEEE Photon. J. 7(2), 1500911 (2015)

[243] Q. Wang, Y. Chen, L. Miao, G. Jiang, S. Chen, J. Liu, X. Fu, C. Zhao, and H. Zhang, Wide spectral and wavelength-tunable dissipative soliton fiber laser with topological insulator nano-sheets self-assembly films sandwiched by PMMA polymer, Opt. Express 23(6), 7681 (2015)

[244] M. Liu, N. A.Zhao, H. Liu, X.W. Zheng, A.P. Luo, Z.C. Luo, W.C. Xu, C.J. Zhao, H. Zhang, and S.C. Wen, Dualwavelength harmonically mode-locked fiber laser with topological insulator saturable absorber, IEEE Photon. Technol. Lett. 26(10), 983 (2014)

[245] X. Jiang, S. Liu, W. Liang, S. Luo, Z. He, Y. Ge, H. Wang, R. Cao, F. Zhang, Q. Wen, J. Li, Q. Bao, D. Fan, and H. Zhang, Broadband nonlinear photonics in fewlayer MXene Ti₃C₂T_x (T= F, O, or OH), Laser Photon. Rev. 12(2), 1700229 (2018)

[246] X. Y.Feng, B. Y.Ding, W. Y.Liang, F. Zhang, T. Y.Ning, J. Liu, and H. Zhang, MXene Ti₃C₂T_x absorber for a 1.06 μm passively Q-switched ceramic laser, Laser Phys. Lett. 15(8), 085805 (2018)

[247] Y. Zu, C. Zhang, X. Guo, W. Liang, J. Liu, L. Su, and H. Zhang, A solid-state passively Q-switched Tm,Gd:CaF₂ laser with a Ti₃C₂T_x MXene absorber near 2 μm, Laser Phys. Lett. 16(1), 015803 (2019)

[248] Y. Song, Z. Liang, X. Jiang, Y. Chen, Z. Li, L. Lu, Y. Ge, K. Wang, J. Zheng, S. Lu, J. Ji, and H. Zhang, Few-layer antimonene decorated microfiber: Ultra-short pulse generation and all-optical thresholding with enhanced long term stability, 2D Mater. 4(4), 045010 (2017)

[249] P. Li, Y. Chen, T. Yang, Z. Wang, H. Lin, Y. Xu, L. Li, H. Mu, B. N.Shivananju, Y. Zhang, Q. Zhang, A. Pan, S. Li, D. Tang, B. Jia, H. Zhang, and Q. Bao, Two-dimensional CH₃NH₃PbI₃ perovskite nanosheets for ultrafast pulsed fiber lasers, ACS Appl. Mater. Interfaces 9(14), 12759 (2017)

[250] Z. Sun, T. Hasan, F. Torrisi, D. Popa, G. Privitera, F. Wang, F. Bonaccorso, D. M.Basko, and A. C.Ferrari, Graphene mode-locked ultrafast laser, ACS Nano 4(2), 803 (2010)

[251] W. Li, B. Chen, C. Meng, W. Fang, Y. Xiao, X. Li, Z. Hu, Y. Xu, L. Tong, H. Wang, W. Liu, J. Bao, and Y. R.Shen, Ultrafast all-optical graphene modulator, Nano Lett. 14(2), 955 (2014)

[252] J. Li, H. Luo, B. Zhai, R. Lu, Z. Guo, H. Zhang, and Y. Liu, Black phosphorus: A two-dimension saturable absorption material for mid-infrared Q-switched and modelocked fiber lasers, Sci. Rep. 6(1), 30361 (2016)

[253] X. M.Liu, H. R.Yang, Y. D.Cui, G. W.Chen, Y. Yang, X. Q.Wu, X. K.Yao, D. D.Han, X. X.Han, C. Zeng, J. Guo, W. L.Li, G. Cheng, and L. M.Tong, Graphene-clad microfibre saturable absorber for ultrafast fibre lasers, Sci. Rep. 6(1), 26024 (2016)

[254] S. Yu, X. Wu, Y. Wang, X. Guo, and L. Tong, 2D materials for optical modulation: Challenges and opportunities, Adv. Mater. 29(14), 1606128 (2017)

[255] F. Wang, Y. Zhang, C. Tian, C. Girit, A. Zettl, M. Crommie, and Y. R.Shen, Gate-variable optical transitions in graphene, Science 320(5873), 206 (2008)

[256] Z. Sun, T. Hasan, F. Torrisi, D. Popa, G. Privitera, F. Wang, F. Bonaccorso, D. M.Basko, and A. C.Ferrari, Graphene mode-locked ultrafast laser, ACS Nano 4(2), 803 (2010)

[257] D. B. S.Soh, R. Hamerly, and H. Mabuchi, Comprehensive analysis of the optical Kerr coefficient of graphene, Phys. Rev. A 94, 023845 (2016)

[258] E. Pop, V. Varshney, and A. K.Roy, Thermal properties of graphene: Fundamentals and applications, MRS Bull. 37(12), 1273 (2012)

[259] Y. Wu, X. Yan, P. Meng, P. Sun, G. Cheng, and R. Zheng, Carbon black/octadecane composites for room temperature electrical and thermal regulation, Carbon 94, 417 (2015)

[260] L. Wu, X. Jiang, J. Zhao, W. Liang, Z. Li, W. Huang, Z. Lin, Y. Wang, F. Zhang, S. Lu, Y. Xiang, S. Xu, J. Li, and H. Zhang, MXene-based nonlinear optical information converter for all-optical modulator and switcher, Laser Photon. Rev. 12(12), 215 (2018)

[261] G. M.Paternò, L. Moretti, A. J.Barker, Q. Chen, K. Müllen, A. Narita, G. Cerullo, F. Scotognella, and G. Lanzani, Pump-push-probe for ultrafast all-optical switching: The case of a nanographene molecule, Adv. Funct. Mater. 29(21), 1805249 (2018)

[262] J. Zheng, Z. Yang, C. Si, Z. Liang, X. Chen, R. Cao, Z. Guo, K. Wang, Y. Zhang, J. Ji, M. Zhang, D. Fan, and H. Zhang, Black phosphorus based all-optical-signalprocessing: Toward high performances and enhanced stability, ACS Photon. 4(6), 1466 (2017)

[263] S. Chen, L. Miao, X. Chen, Y. Chen, C. Zhao, S. Datta, Y. Li, Q. Bao, H. Zhang, Y. Liu, S. Wen, and D. Fan, Few-layer topological insulator for all-optical signal processing using the nonlinear Kerr effect, Adv. Opt. Mater. 3(12), 1769 (2015)

[264] Y. Wang, F. Zhang, X. Tang, X. Chen, Y. Chen, W. Huang, Z. Liang, L. Wu, Y. Ge, Y. Song, J. Liu, D. Zhang, J. Li, and H. Zhang, All-optical phosphorene phase modulator with enhanced stability under ambient conditions, Laser Photon. Rev. 12(6), 1800016 (2018)

[265] J. Zheng, X. Tang, Z. Yang, Z. Liang, Y. Chen, K. Wang, Y. Song, Y. Zhang, J. Ji, Y. Liu, D. Fan, and H. Zhang, Few-layer phosphorene-decorated microfiber for all-optical thresholding and optical modulation, Adv. Opt. Mater. 5(9), 1700026 (2017)

[266] B. Sensale-Rodriguez, R. Yan, M. M.Kelly, T. Fang, K. Tahy, W. S.Hwang, D. Jena, L. Liu, and H. G.Xing, Broadband graphene terahertz modulators enabled by intraband transitions, Nat. Commun. 3(1), 780 (2012)

[267] B. Sensale-Rodriguez, T. Fang, R. Yan, M. M.Kelly, D. Jena, L. Liu, and H. Xing, Unique prospects for graphenebased terahertz modulators, Appl. Phys. Lett. 99(11), 113104 (2011)

[268] Q. Y.Wen, W. Tian, Q. Mao, Z. Chen, W. W.Liu, Q. H.Yang, M. Sanderson, and H. W.Zhang, Graphene based all-optical spatial terahertz modulator, Sci. Rep. 4(1), 7409 (2015)

[269] Y. Yao, M. A.Kats, R. Shankar, Y. Song, J. Kong, M. Loncar, and F. Capasso, Wide wavelength tuning of optical antennas on graphene with nanosecond response time, Nano Lett. 14(1), 214 (2014)

[270] N. K.Emani, T. F.Chung, X. Ni, A. V.Kildishev, Y. P.Chen, and A. Boltasseva, Electrically tunable damping of plasmonic resonances with graphene, Nano Lett. 12(10), 5202 (2012)

[271] Z. Shi, L. Gan, T. H.Xiao, H. L.Guo, and Z. Y.Li, Alloptical modulation of a graphene-cladded silicon photonic crystal cavity, ACS Photon. 2(11), 1513 (2015)

[272] S. H.Lee, M. Choi, T. T.Kim, S. Lee, M. Liu, X. Yin, H. K.Choi, S. S.Lee, C. G.Choi, S. Y.Choi, X. Zhang, and B. Min, Switching terahertz waves with gate-controlled active graphene metamaterials, Nat. Mater. 11(11), 936 (2012)

[273] Z. Huang, W. Han, H. Tang, L. Ren, D. S.Chander, X. Qi, and H. Zhang, Photoelectrochemical-type sunlight photodetector based on MoS₂/graphene heterostructure, 2D Mater. 2(3), 035011 (2015).

[274] X. Ren, Z. Li, Z. Huang, D. Sang, H. Qiao, X. Qi, J. Li, J. Zhong, and H. Zhang, Environmentally robust black phosphorus nanosheets in solution: Application for self-powered photodetector, Adv. Funct. Mater. 27(18), 1606834 (2017)

[275] P. Guo, J. Xu, K. Gong, X. Shen, Y. Lu, Y. Qiu, J. Xu, Z. Zou, C. Wang, H. Yan, Y. Luo, A. Pan, H. Zhang, J. design for high-performance photodetectors, ACS Nano 10(9), 8474 (2016)

[276] Z. Sun, Y. Zhao, Z. Li, H. Cui, Y. Zhou, W. Li, W. Tao, H. Zhang, H. Wang, P. K.Chu, and X. F.Yu, TiL₄-coordinated black phosphorus quantum dots as an efficient contrast agent for in vivo photoacoustic imaging of cancer, Small 13(11), 1602896 (2017)

[277] H. Xie, Z. Li, Z. Sun, J. Shao, X. F.Yu, Z. Guo, J. Wang, Q. Xiao, H. Wang, Q. Q.Wang, H. Zhang, and P. K.Chu, Metabolizable ultrathin Bi₂Se₃ nanosheets in imaging-guided photothermal therapy, Small 12(30), 4136 (2016)

[278] W. Tao, X. Ji, X. Xu, M. A.Islam, Z. Li, S. Chen, P. E.Saw, H. Zhang, Z. Bharwani, Z. Guo, J. Shi, and O. C.Farokhzad, Antimonene quantum dots: Synthesis and application as near-infrared photothermal agents for effective cancer therapy, Angew. Chem. Int. Ed. Engl. 56(39), 11896 (2017)

[279] F. Yin, K. Hu, S. Chen, D. Wang, J. Zhang, M. Xie, D. Yang, M. Qiu, H. Zhang, and Z. Li, Black phosphorus quantum dot based novel siRNA delivery systems in human pluripotent teratoma PA-1 cells, J. Mater. Chem. B 5(27), 5433 (2017)

[280] M. Qiu, D. Wang, W. Liang, L. Liu, Y. Zhang, X. Chen, D. K.Sang, C. Xing, Z. Li, B. Dong, F. Xing, D. Fan, S. Bao, H. Zhang, and Y. Cao, Novel concept of the smart NIR-light-controlled drug release of black phosphorus nanostructure for cancer therapy, Proc. Natl. Acad. Sci. USA 115(3), 501 (2018)

[281] T. Wang, Y. Guo, P. Wan, H. Zhang, X. Chen, and X. Sun, Flexible transparent electronic gas sensors, Small 12(28), 3748 (2016)

[282] P. Wan, X. Wen, C. Sun, B. K.Chandran, H. Zang, X. Sun, and X. Chen, Flexible transparent films based on nanocomposite networks of polyaniline and carbon nanotubes for high-performance gas sensing, Small 11(40), 5409 (2015)

[283] T. Wang, Y. Guo, P. Wan, X. Sun, H. Zhang, Z. Yu, and X. Chen, A flexible transparent colorimetric wrist strap sensor, Nanoscale 9(2), 869 (2017)

[284] X. Chen, G. Xu, X. Ren, Z. Li, X. Qi, K. Huang, H. Zhang, Z. Huang, and J. Zhong, A black/red phosphorus hybrid as an electrode material for high-performance Li-ion batteries and supercapacitors, J. Mater. Chem. A 5(14), 6581 (2017)

[285] R. Wang, X. Li, Z. Wang, and H. Zhang, Electrochemical analysis graphite/electrolyte interface in lithium-ion batteries: p-toluenesulfonyl isocyanate as electrolyte additive, Nano Energy 34, 131 (2017)

[286] D. Mao, S. L.Zhang, Y. D.Wang, X. T.Gan, W. D.Zhang, T. Mei, Y. G.Wang, Y. S.Wang, H. B.Zeng, and J. L.Zhao, WS₂ saturable absorber for dissipative soliton mode locking at 1.06 and 1.55 m, Opt. Express 23(21), 27509 (2015)

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