Linear dipole behavior of single quantum dots encased in metal oxide semiconductor nanoparticles films

Abstract

Understanding of charge/energy exchange processes and interfacial interactions that occur between quantum dots (QDs) and the metal oxides is of critical importance to these QD-based optoelectronic devices. This work reports on linear dipole behavior of single near-infrared emitting CdSeTe/ZnS core/shell QDs which are encased in indium tin oxide (ITO) semiconductor nanoparticles films. A strong polarization anisotropy in photoluminescence emission is observed by defocused wide-field imaging and polarization measurement techniques, and the average polarization degree is up to 0.45. A possible mechanism for the observation is presented in which the electrons, locating at single QD surface from ITO by electron transfer due to the equilibration of the Fermi levels, result in a significant Stark distortion of the QD electron/hole wavefunctions. The Stark distortion results in the linear polarization property of the single QDs. The investigation of linear dipole behavior for single QDs encased in ITO films would be helpful for further improving QD-based device performance.

Keywords

single quantum dots / linear dipole behavior / electron transfer / polarization property / metal oxide nanoparticles

References

[1] M. R. Kim and D. L. Ma, Quantum-dot-based solar cells: Recent advances, strategies, and challenges, J. Phys. Chem. Lett. 6(1), 85 (2015)

[2] J. Kwak, J. Lim, M. Park, S. Lee, K. Char, and C. Lee, High-power genuine ultraviolet light-emitting diodes based on colloidal nanocrystal quantum dots, Nano Lett. 15(6), 3793 (2015)

[3] C. H. M. Chuang, P. R. Brown, V. Bulovic, and M. G. Bawendi, Improved performance and stability in quantum dot solar cells through band alignment engineering, Nat. Mater. 13(8), 796 (2014)

[4] G. C. Shan, Z. Q. Yin, C. H. Shek, and W. Huang, Single photon sources with single semiconductor quantum dots, Front. Phys. 9(2), 170 (2014)

[5] S. Y. Jin, N. H. Song, and T. Q. Lian, Suppressed blinking dynamics of single QDs on ITO, ACS Nano 4(3), 1545 (2010)

[6] N. H. Song, H. M. Zhu, Z. Liu, Z. Q. Huang, D. Wu, and T. Q. Lian, Unraveling the exciton quenching mechanism of quantum dots on antimony-doped SnO₂ films by transient absorption and single dot fluorescence spectroscopy, ACS Nano 7(2), 1599 (2013)

[7] H. Cho, J. Kwak, J. Lim, M. Park, D. Lee, W. K. Bae, Y. S. Kim, K. Char, S. Lee, and C. Lee, Soft contact transplanted nanocrystal quantum dots for light-emitting diodes: Effect of surface energy on device performance, ACS Appl. Mater. Interfaces 7(20), 10828 (2015)

[8] G. Luo, Z. Z. Zhang, H. O. Li, X. X. Song, G. W. Deng, G. Cao, M. Xiao, and G. P. Guo, Quantum dot behavior in transition metal dichalcogenides nanostructures, Front. Phys. 12(4), 128502 (2017)

[9] Q. B. Zeng, S. Chen, L. You, and R. Lu, Transport through a quantum dot coupled to two majorana bound states, Front. Phys. 12(4), 127302 (2017)

[10] S. Y. Jin and T. Q. Lian, Electron transfer dynamics from single CdSe/ZnS quantum dots to TiO₂ nanoparticles, Nano Lett. 9(6), 2448 (2009)

[11] J. M. Luther, M. Law, M. C. Beard, Q. Song, M. O. Reese, R. J. Ellingson, and A. J. Nozik, Schottky solar cells based on colloidal nanocrystal films, Nano Lett. 8(10), 3488 (2008)

[12] W. Ma, S. L. Swisher, T. Ewers, J. Engel, V. E. Ferry, H. A. Atwater, and A. P. Alivisatos, Photovoltaic performance of ultrasmall PbSe quantum dots,ACS Nano 5(10), 8140 (2011)

[13] J. Tang, H. Liu, D. Zhitomirsky, S. Hoogland, X. Wang, M. Furukawa, L. Levina, and E. H. Sargent, Quantum junction solar cells, Nano Lett. 12(9), 4889 (2012)

[14] Z. Ning, Y. Ren, S. Hoogland, O. Voznyy, L. Levina, P. Stadler, X. Lan, D. Zhitomirsky, and E. H. Sargent, Allinorganic colloidal quantum dot photovoltaics employing solution-phase halide passivation, Adv. Mater. 24(47), 6295 (2012)

[15] A. Issac, S. Y. Jin, and T. Q. Lian, Intermittent electron transfer activity from single CdSe/ZnS quantum dots, J. Am. Chem. Soc. 130(34), 11280 (2008)

[16] P. P. Jha and P. Guyot-Sionnest, Trion decay in colloidal quantum dots, ACS Nano 3(4), 1011 (2009)

[17] S. E. Yalcin, B. Q. Yang, J. A. Labastide, and M. D. Barnes, Electrostatic force microscopy and spectral studies of electron attachment to single quantum dots on indium tin oxide substrates, J. Phys. Chem. C 116(29), 15847 (2012)

[18] Y. Nagao, H. Fujiwara, and K. Sasaki, Analysis of trapstate dynamics of single CdSe/ZnS quantum dots on a TiO₂ substrate with different Nb concentrations, J. Phys. Chem. C 118(35), 20571 (2014)

[19] H. W. Cheng, C. T. Yuan, J. S. Wang, T. N. Lin, J. L. Shen, Y. J. Hung, J. Tang, and F. G. Tseng, Modification of photon emission statistics from single colloidal CdSe quantum dots by conductive materials, J. Phys. Chem. C 118(31), 18126 (2014)

[20] B. Li, G. Zhang, Z. Wang, Z. Li, R. Chen, C. Qin, Y. Gao, L. Xiao, and S. Jia, Suppressing the fluorescence blinking of single quantum dots encased in N-type semiconductor nanoparticles, Sci. Rep. 6(1), 32662 (2016)

[21] Z. J. Li, G. F. Zhang, B. Li, R. Y. Chen, C. B. Qin, Y. Gao, L. T. Xiao, and S. T. Jia, Enhanced biexciton emission from single quantum dots encased in N-type semiconductor nanoparticles, Appl. Phys. Lett. 111(15), 153106 (2017)

[22] P. P. Jha and P. Guyot-Sionnest, Electrochemical switching of the photoluminescence of single quantum dots, J. Phys. Chem. C 114(49), 21138 (2010)

[23] C. Lethiec, J. Laverdant, H. Vallon, C. Javaux, B. Dubertret, J. M. Frigerio, C. Schwob, L. Coolen, and A. Maitre, Measurement of three-dimensional dipole orientation of a single fluorescent nanoemitter by emission polarization analysis, Phys. Rev. X 4(2), 021037 (2014)

[24] A. G. Silva, C. A. Parra-Murillo, P. T. Valentim, J. S. Morais, F. Plentz, P. S. Guimaraes, H. Vinck-Posada, B. A. Rodriguez, M. S. Skolnick, A. Tahraoui, and M. Hopkinson, Quantum dot dipole orientation and excitation efficiency of micropillar modes, Opt. Express 16(23), 19201 (2008)

[25] X. Brokmann, L. Coolen, J. P. Hermier, and M. Dahan, Emission properties of single CdSe/ZnS quantum dots close to a dielectric interface, Chem. Phys. 318(1–2), 91 (2005)

[26] Q. A. Li, X. J. Chen, Y. Xu, S. Lan, H. Y. Liu, Q. F. Dai, and L. J. Wu, Photoluminescence properties of the CdSe quantum dots accompanied with rotation of the defocused wide-field fluorescence images, J. Phys. Chem. C 114(32), 13427 (2010)

[27] W. D. Sheng, M. Korkusinski, A. D. Guclu, M. Zielinski, P. Potasz, E. S. Kadantsev, O. Voznyy, and P. Hawrylak, Electronic and optical properties of semiconductor and graphene quantum dots, Front. Phys. 7(3), 328 (2012)

[28] J. J. Macklin, J. K. Trautman, T. D. Harris, and L. E. Brus, Imaging and time-resolved spectroscopy of single molecules at an interface, Science 272(5259), 255 (1996)

[29] P. Dedecker, B. Muls, A. Deres, H. Uji-i, J. Hotta, M. Sliwa, J. P. Soumillion, K. Müllen, J. Enderlein, and J. Hofkens, Defocused wide-field imaging unravels structural and temporal heterogeneity in complex systems, Adv. Mater. 21(10–11), 1079 (2009)

[30] G. F. Zhang, L. T. Xiao, F. Zhang, X. B. Wang, and S. T. Jia, Single molecules reorientation reveals the dynamics of polymer glasses surface, Phys. Chem. Chem. Phys. 12(10), 2308 (2010)

[31] T. Ha, T. Enderle, S. Chemla, R. Selvin, and S. Weiss, Single molecule dynamics studied by polarization modulation, Phys. Rev. Lett. 77(19), 3979 (1996)

[32] R. Y. Chen, G. F. Zhang, C. B. Qin, Y. Gao, L. T. Xiao, and S. T. Jia, Modification of single molecule fluorescence using external fields, Front. Phys. 12(5), 128101 (2017)

[33] A. L. Efros, Luminescence polarization of CdSe microcrystals, Phys. Rev. B 46(12), 7448 (1992)

[34] A. L. Efros and A. V. Rodina, Band-edge absorption and luminescence of nonspherical nanometer-size crystals, Phys. Rev. B 47(15), 10005 (1993)

[35] J. T. Hu, L. S. Li, W. D. Yang, L. Manna, L. W. Wang, and A. P. Alivisatos, Linearly polarized emission from colloidal semiconductor quantum rods, Science 292(5524), 2060 (2001)

[36] H. Htoon, M. Furis, S. A. Crooker, S. Jeong, and V. I. Klimov, Linearly polarized ‘fine structure’ of the bright exciton state in individual CdSe nanocrystal quantum dots, Phys. Rev. B 77(3), 035328 (2008)

[37] D. Montiel and H. Yang, Observation of correlated emission intensity and polarization fluctuations in single CdSe/ZnS quantum dots, J. Phys. Chem. A 112(39), 9352 (2008)

[38] C. Lethiec, F. Pisanello, L. Carbone, A. Bramati, L. Coolen, and A. Maitre, Polarimetry-based analysis of dipolar transitions of single colloidal CdSe/CdS dot-inrods, New J. Phys. 16(9), 093014 (2014)

[39] S. Vezzoli, M. Manceau, G. Lemenager, Q. Glorieux, E. Giacobino, L. Carbone, M. De Vittorio, and A. Bramati, Exciton fine structure of CdSe/CdS nanocrystals determined by polarization microscopy at room temperature, ACS Nano 9(8), 7992 (2015)

[40] K. T. Early, K. D. McCarthy, M. Y. Odoi, P. K. Sudeep, T. Emrick, and M. D. Barnes, Linear dipole behavior in single CdSe-oligo(phenylene vinylene) nanostructures, ACS Nano 3(2), 453 (2009)

[41] K. T. Early, P. K. Sudeep, T. Emrick, and M. D. Barnes, Polarization-driven stark shifts in quantum dot luminescence from single CdSe/oligo-PPV nanoparticles, Nano Lett. 10(5), 1754 (2010)

[42] N. I. Hammer, K. T. Early, K. Sill, M. Y. Odoi, T. Emrick, and M. D. Barnes, Coverage-mediated suppression of blinking in solid state quantum dot conjugated organic composite nanostructures, J. Phys. Chem. B 110(29), 14167 (2006)

[43] M. Y. Odoi, K. T. Early, R. Tangirala, P. K. Sudeep, T. Emrick, and M. D. Barnes, Probing multiexcitonic emission in single CdSe-oligo(phenylenevinylene) composite nanostructures, J. Phys. Chem. C 113(31), 13462 (2009)

[44] S. Rühle, Tabulated values of the shockley-queisser limit for single junction solar cells, Sol. Energy 130, 139 (2016)

[45] A. Deres, G. A. Floudas, K. Müllen, M. Van der Auweraer, F. De Schryver, J. Enderlein, H. Uji-i, and J. Hofkens, The origin of heterogeneity of polymer dynamics near the glass temperature as probed by defocused imaging, Macromolecules 44(24), 9703 (2011)

[46] M. Böhmer and J. Enderlein, Orientation imaging of single molecules by wide-field epifluorescence microscopy, J. Opt. Soc. Am. B 20(3), 554 (2003)

[47] D. Patra, I. Gregor, and J. Enderlein, Image analysis of defocused single-molecule images for three-dimensional molecule orientation studies, J. Phys. Chem. A 108(33), 6836 (2004)

[48] T. Ihara, R. Sato, T. Teranishi, and Y. Kanemitsu, Delocalized and localized charged excitons in single CdSe/CdS dot-in-rods revealed by polarized photoluminescence blinking, Phys. Rev. B 90(3), 035309 (2014)

[49] F. Hu, B. Lv, C. Yin, C. Zhang, X. Wang, B. Lounis, and M. Xiao, Carrier multiplication in a single semiconductor nanocrystal, Phys. Rev. Lett. 116(10), 106404 (2016)

[50] D. Patra, I. Gregor, J. Enderlein, and M. Sauer, Defocused imaging of quantum-dot angular distribution of radiation, Appl. Phys. Lett. 87(10), 101103 (2005)

[51] R. Schuster, M. Barth, A. Gruber, and F. Cichos, Defocused wide field fluorescence imaging of single CdSe/ZnS quantum dots, Chem. Phys. Lett. 413(4–6), 280 (2005)

[52] A. L. Efros, M. Rosen, M. Kuno, M. Nirmal, D. J. Norris, and M. Bawendi, Band-edge exciton in quantum dots of semiconductors with a degenerate valence band: Dark and bright exciton states, Phys. Rev. B 54(7), 4843 (1996)

[53] C. Galland, Y. Ghosh, A. Steinbrück, M. Sykora, J. A. Hollingsworth, V. I. Klimov, and H. Htoon, Two types of luminescence blinking revealed by spectroelectrochemistry of single quantum dots, Nature 479(7372), 203 (2011)

[54] L. W. Wang, Calculating the influence of external charges on the photoluminescence of a CdSe quantum dot, J. Phys. Chem. B 105(12), 2360 (2001)

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