Property of CsPbBr3 Perovskite Nanocrystals Prepared in Different Solvents

被引：0

作者：

Fang J. ^{[1
]}

Chen Z.-T. ^{[1
]}

Shen J.-R. ^{[1
]}

Lin P.-C. ^{[1
]}

机构：

[1] Guangdong Provincial Key Laboratory on Functional Soft Condensed Matter, Materials and Energy School, Guangdong University of Technology, Guangzhou

来源：

Faguang Xuebao/Chinese Journal of Luminescence | 2020年 / 41卷 / 11期

基金：

中国国家自然科学基金;

关键词：

CsPbBr[!sub]3[!/sub; Liquid-phase precipitation; Perovskite; Solvent;

D O I：

10.37188/CJL.20200187

中图分类号：

学科分类号：

摘要：

All inorganic perovskite nanocrystals have broad application prospects in functional optical materials and optical devices due to their high quantum yield, narrow line width and full band visible light emission characteristics. The effect of solvent density, polarity and viscosity on the reaction process, crystal structure, microstructure and optical properties of CsPbBr3 perovskite nanocrystals was studied in this work. The results show that the growth of CsPbBr3 perovskite nanocrystals in the upper, lower and whole liquid phase of the reactor can be realized by changing the density of the reaction solvent. The higher the polarity of the solvent, the lower the crystallinity, the lower the luminescence intensity and stability. High solvent viscosity is not conducive to the preparation of high quality CsPbBr3 perovskite nanocrystals. The method proposed in this paper is expected to further improve its application in solar cells, lasers, photodetectors and light-emitting diodes. © 2020, Science Press. All right reserved.

引用

页码：1376 / 1382

页数：6

共 36 条

[1]

GAO X Q, ZHUO N Z, WANG H B, Et al., Application of semiconductor quantum dots no white-light-emitting diodes, Acta Phys. Sinica, 64, 13, (2015)

[2]

ZHAO T S, OH N, JISHKARIANI D, Et al., General synthetic route to high-quality colloidal Ⅲ-Ⅴ semiconductor quantum dots based on pnictogen chlorides, J. Am. Chem. Soc, 141, 38, pp. 15145-15152, (2019)

[3]

LIU W Y, CHEN F, KONG S Q, Et al., Synthesis, properties and application of all-inorganic perovskite quantum dots, Chin. J. Lumin, 41, 2, pp. 117-133, (2020)

[4]

ZHANG Y X, WANG H Y, ZHANG Z Y, Et al., Photoluminescence quenching of inorganic cesium lead halides perovskite quantum dots (CsPbX3) by electron/hole acceptor, Phys. Chem. Chem. Phys, 19, 3, pp. 1920-1926, (2017)

[5]

LI M, ZHANG X, DU Y Y, Et al., Colloidal CsPbX3 (X=Br, I, Cl) NCs: morphology controlling, composition evolution, and photoluminescence shift, J. Lumin, 190, pp. 397-402, (2017)

[6]

SHINDE A, GAHLAUT R, MAHAMUNI S., Low-temperature photoluminescence studies of CsPbBr3 quantum dots, J. Phys. Chem. C, 121, 27, pp. 14872-14878, (2017)

[7]

YANG W S, NOH J H, JEON N J, Et al., High-performance photovoltaic perovskite layers fabricated through intramolecular exchange, Science, 348, 6240, pp. 1234-1237, (2015)

[8]

EPERON G E, STRANKS S D, MENELAOU C, Et al., Formamidinium lead trihalide: a broadly tunable perovskite for efficient planar heterojunction solar cells, Energy Environ. Sci, 7, 3, pp. 982-988, (2014)

[9]

MEI A Y, LI X, LIU L F, Et al., A hole-conductor-free, fully printable mesoscopic perovskite solar cell with high stability, Science, 345, 6194, pp. 295-298, (2014)

[10]

NEJAND B A, NAZARI P, GHARIBZADEH S, Et al., All-inorganic large-area low-cost and durable flexible perovskite solar cells using copper foil as a substrate, Chem. Commun, 53, 4, pp. 747-750, (2017)

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