Highly Stable CsPbBr₃ Nanocrystal Phosphors by Surface Passivation and Encapsulation

Abstract

The colloidal all-inorganic CsPbX₃(X=I, Br, Cl) perovskite nanocrystals(NCs) with unique optical properties have attracted considerable attention in the field of semiconductor nanocrystals, but their application is hindered by stability issues caused by surface defects and environmental factors. Usually with inert layer encapsulation, the stability of CsPbX₃ NCs can be significantly enhanced. However, due to the loss of highly dynamic oleic acid/oleylamine ligands, it is usually accompanied by a decrease in the photoluminescence quantum yield(PLQY). Herein, we report a facile method for preparing CsPbBr₃ NCs based green phosphors with high stability and bright emission. With modification of colloidal CsPbBr₃ NCs by di-dodecyldimethylammonium bromide and sequent encapsulation in the as-synthesized mesoporous MOF-5, the green emitting phosphors with enhanced stability and a PLQY of 77% were obtained. The phosphors exhibit enhanced resistance against ambient oxygen, UV light, heat treatment and water. These excellent properties show the potential value of our prepared NCs as stable phosphors in light-emitting devices.

Keywords

Perovskite nanocrystal / Phosphor / Surface passivation / Encapsulation / Mesoporous MOF-5

References

[1] Protesescu L, Yakunin S, Bodnarchuk M, Krieg F, Caputo R, Hendon C, Yang R, Walsh A, Kovalenko M. Nano Lett., 2015, 15: 3692.

[2] Huang S, Wang B, Zhang Q, Li Z, Shan A, Li L. Adv. Opt. Mater., 2018, 6: 1701106.

[3] Li J, Xu L, Wang T, Song J, Chen J, Xue J, Dong Y, Cai B, Shan Q, Han B, Zeng H. Adv. Mater., 2017, 29: 1603885.

[4] Zhang X, Wang H, Hu Y, Pei Y, Wang S, Shi Z, Colvin V L, Wang S, Zhang Y, Yu W. J. Phys. Chem. Lett., 2019, 10: 1750.

[5] Zhang F, Huang S, Wang P, Chen X, Zhao S, Dong Y, Zhong H. Chem. Mater., 2017, 29: 3793.

[6] Yang M, Cao Q, Zhong P, Li X, Zhang Q. J. Mater. Chem. C, 2019, 7: 757.

[7] Schmidt L, Pertegás A, González-Carrero S, Malinkiewicz O, Agouram S, Mínguez G, Bolink H, Galian E, Perez-Prieto J. J. Am. Chem. Soc., 2014, 136: 850.

[8] Wang Y, Li X, Sreejith S, Cao F, Wang Z, Stuparu M, Zeng H, Sun H. Adv. Mater., 201, 28: 10637.

[9] Li X, Cao F, Yu D, Chen J, Sun Z, Shen Y, Zhu Y, Wang L, Wei Y, Wu Y, Zeng H. Small, 2017, 13: 1603996.

[10] Kulbak M, Gupta S, Kedem N, Levine I, Bendikov T, Hodes G, Cahen D. J. Phys.Chem. Lett., 201, 7: 167.

[11] Huang H, Chen B, Wang Z, Hung T, Susha A, Zhong H, Rogach A. Chem. Sci., 201, 7: 5699.

[12] Lin C, Jiang D, Kuo C, Cho C, Tsai Y, Satoh T, Su C. ACS Appl. Mater. Interfaces, 2018, 10: 2210.

[13] de Roo J, Ibanez M, Geiregat P, Nedelcu G, Walravens W, Maes J, Martins J, van Driessche I, Kovalenko M, Hens Z. ACS Nano, 201, 10: 2071.

[14] Pan J, Shang Y, Yin J, de Bastiani M, Peng W, Dursun I, Sinatra L, El-Zohry A, Hedhili M, Emwas A, Mohammed O, Ning Z, Bakr O. J. Am. Chem. Soc., 2018, 140: 562.

[15] Stoumpos C, Malliakas C, Kanatzidis M. Inorg. Chem., 2013, 52: 9019.

[16] Wang C, Chesman A, Jasieniak J. Chem. Commun., 201, 53: 232.

[17] Smock S, Williams T, Brutchey R. Angew. Chem. Int. Ed., 2018, 130: 11885.

[18] Li Q, Li H, Shen H, Wang F, Zhao F, Li F, Zhang X, Li D, Jin X, Sun W. ACS Photonics, 2017, 4: 2504.

[19] Wu Y, Wei C, Li X, Li Y, Qiu S, Shen W, Cai B, Sun Z, Yang D, Deng Z, Zeng H. ACS Energy Lett., 2018, 3: 2030.

[20] Imran M, Ramade J, Stasio F, Franco M, Buha J, Aert S, Goldoni L, Lauciello S, Prato M, Infante I, Bals S, Manna L. Chem. Mater., 2020, 32: 10641.

[21] Li Y, Wang X, Xue W, Wang W, Zhu W, Zhao L. Nano Res., 2019, 12: 785.

[22] Mosconi E, Azpiroz J, de Angelis F. Chem. Mater., 2015, 27: 4885.

[23] Wang H, Lin S, Tang A, Singh B, Tong H, Chen C, Lee Y, Tsai T, Liu R. Angew. Chem., Int. Ed., 201, 55: 7924.

[24] Dirin D, Protesescu L, Trummer D, Kochetygov I, Yakunin S, Krumeich F, Stadie N, Kovalenko M. Nano Lett., 201, 16: 5866.

[25] Zhang D, Xu Y, Liu Q, Xia Z. Inorg. Chem., 2018, 57: 4613.

[26] Rambabu D, Bhattacharyya S, Singh T, Chakravarthy M, Maji T. Inorg. Chem., 2020, 59: 1436.

[27] Wong Y, de Andrew Ng J, Tan Z. Adv. Mater., 2018, 30: 1800774.

[28] Zhang X, Wang H, Tang A, Lin S, Tong H, Chen C, Lee Y, Tsai T, Liu R. Chem. Mater., 201, 28: 8493.

[29] Huang Y, Li F, Qiu L, Lin F, Lai Z, Wang S, Lin L, Zhu Y, Wang Y, Jiang Y, Chen X. ACS Appl. Mater. Interfaces, 2019, 11: 26384.

[30] Jiang G, Guhrenz C, Kirch A, Sonntag L, Bauer C, Fan X, Wang J. ACS Nano, 2019, 13(9): 10386.

[31] Chen Y, Zhou Y, Zhao Q, Zhang J, Ma J, Xuan T, Guo S, Yong Z, Wang J, Kuroiwa Y. ACS Appl. Mater. Interfaces, 2018, 10: 15905.

[32] Zhang F, Shi Z, Li S, Ma Z, Li Y, Wang L, Wu D, Tian Y, Du G, Li X. ACS Appl. Mater. Interfaces, 2019, 11: 28013.

[33] Zhou Y, Pan A, Shi C, Ma X, Jia M, Huang H, Ren D, He L. Appl. Surf. Sci., 2020, 515: 146004.

[34] Wang B, Zhang C, Zheng W, Zhang Q, Bao Z, Kong L, Li L. Chem. Mater., 2020, 32: 308.

[35] Li Z, Kong L, Huang S, Li L. Angew. Chem. Int. Ed., 2017, 56: 8134.

[36] Li Z, Hofman E, Li J, Davis A, Tung C, Wu L, Zheng W. Adv. Funct. Mater., 2018, 28: 1704288.

[37] Zhang Q, Wang B, Zheng W, Kong L, Wan Q, Zhang C, Li Z, Cao X, Liu M, Li L. Nat. Commun., 2020, 11: 31.

[38] Guhrenz C, Benad A, Ziegler C, Haubold D, Gaponik N, Eychmüller A. Chem. Mater., 201, 28: 9033.

[39] Li Z, Kong L, Huang S, Li L. Angew. Chem. Int. Ed., 2017, 56: 8134.

[40] Huang S, Li Z, Kong L, Zhu N, Shan A, Li L. J. Am. Chem. Soc., 201, 138: 5749.

[41] Ren J, Li T, Zhou X, Dong X, Shorokhov A, Semenov M, Wang Y, Krevchik V. Chem. Eng. J., 2019, 358(8): 30.

[42] Zheng C, Bi C, Huang F, Binks D, Tian T. ACS Appl. Mater. Interfaces, 2019, 11: 25410.

[43] Gonzalez-Pedro V, Veldhuis S, Begum R, Bañuls M, Bruno A, Mathews N, Mhaisalkar S, Maquieira ACS Energy Lett., 2018, 3: 1409.

[44] Liu Y, Li F, Liu Q, Xia Z. Chem. Mater., 2018, 30: 6922.

[45] Vossier A, Al Alam E, Dollet A, Amara M. IEEE J. Photovolt., 2015, 5: 1805.