Property of CsPbBr<sub>3</sub> Perovskite Nanocrystals Prepared in Different Solvents

Jun FANG; Ze-ting CHEN; Jiang-rong SHEN; Peng-cheng LIN

doi:10.37188/CJL.20200187

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Property of CsPbBr₃ Perovskite Nanocrystals Prepared in Different Solvents

Synthesis and Properties of Materials | 更新时间：2020-11-10

- Property of CsPbBr₃ Perovskite Nanocrystals Prepared in Different Solvents
- Chinese Journal of Luminescence Vol. 41, Issue 11, Pages: 1376-1382(2020)
- 作者机构：
  
  广东工业大学材料与能源学院广东省功能软凝聚态物质重点实验室, 广东广州 510006
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China;Pearl River Nova Program of Guangzhou,
- DOI：10.37188/CJL.20200187
  CLC： O482.31
- Published：2020-11，
  
  Received：02 July 2020，
  
  Accepted：2020-7-29
- 稿件说明：
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JUN FANG, ZE-TING CHEN, JIANG-RONG SHEN, et al. Property of CsPbBr₃ Perovskite Nanocrystals Prepared in Different Solvents. [J]. Chinese journal of luminescence, 2020, 41(11): 1376-1382.
DOI：

JUN FANG, ZE-TING CHEN, JIANG-RONG SHEN, et al. Property of CsPbBr₃ Perovskite Nanocrystals Prepared in Different Solvents. [J]. Chinese journal of luminescence, 2020, 41(11): 1376-1382. DOI： 10.37188/CJL.20200187.

摘要

全无机钙钛矿纳米晶由于具有高量子产率、窄线宽和可见光全波段发光特性，在功能光学材料和光学器件等领域具有广阔的应用前景。本文在室温下通过液相沉淀法制备CsPbBr

钙钛矿纳米晶，研究了溶剂密度、极性和粘度对钙钛矿纳米晶的反应过程、晶体结构、微观形貌和光学性能的影响。结果表明，通过改变反应溶剂的密度可以实现CsPbBr

钙钛矿纳米晶在反应器上部、下部以及整个液相中的生长。溶剂的极性越大，制备的CsPbBr

钙钛矿纳米晶的结晶度越低、发光强度和稳定性越低。过高的溶剂粘度不利于高质量CsPbBr

钙钛矿纳米晶的制备。本文提出的多种溶剂下快速制备CsPbBr

纳米晶的方法有望进一步促进其在太阳能电池、激光器、光探测器以及发光二极管等领域的应用。

Abstract

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 CsPbBr

perovskite nanocrystals was studied in this work. The results show that the growth of CsPbBr

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 CsPbBr

perovskite nanocrystals. The method proposed in this paper is expected to further improve its application in solar cells

lasers

photodetectors and light-emitting diodes.

关键词

CsPbBr3液相沉淀法溶剂钙钛矿

Keywords

CsPbBr3liquid-phase precipitationsolventperovskite

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Related Institution

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

State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University

Research Institute of Photonics, Dalian Polytechnic University

State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University

State Key Laboratory of Integrated Optoelectronics，College of Electronic Science and Engineering， Jilin University

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Property of CsPbBr3 Perovskite Nanocrystals Prepared in Different Solvents

DOI：10.37188/CJL.20200187

摘要

Abstract

关键词

Keywords

references

Property of CsPbBr₃ Perovskite Nanocrystals Prepared in Different Solvents