中华医学超声杂志

应用化学

• 封面图片 •    下一篇

多色高发光效率CsPbX3(X=Cl,Br,I)钙钛矿量子点的制备及其在发光二极管中的应用

黄国斌a,骆登峰a,张茂升ab*()   

  1. a闽南师范大学 化学化工与环境学院 福建 漳州 363000
    b闽南师范大学 分离分析科学与技术福建省重点实验室 福建 漳州 363000
  • 收稿日期:2019-01-17 出版日期:2019-08-01
  • 通讯作者: 张茂升
  • 基金资助:
    福建省自然科学基金(2013J01062)福建省教育厅科技计划项目(JK2017032)漳州市自然科学基金(ZZ2016J30)和闽南师范大学科技计划项目(MK201721)资助项目

Preparation of CsPbX3(X=Cl,Br,I) Perovskite Quantum Dots with Multicolor and High Luminescence Efficiency and Its Application in Light Emitting Diode Devices

HUANG Guobina,LUO Dengfenga,ZHANG Maoshengab*()   

  1. aSchool of Chemistry,Chemical Engineering and Environment
    bFujian Province University Key Laboratory of Analytical Science,Minnan Normal University,Zhangzhou,Fujian 363000,China
  • Received:2019-01-17 Published:2019-08-01
  • Contact: ZHANG Maosheng
  • Supported by:
    Supported by the Natural Science Foundation of Fujian Province, China(No.2013J01062), Science and Technology Projects of the Education Department, Fujian Province of China(No.JK2017032), the Natural Science Foundation of Zhangzhou City, China(No.ZZ2016J30), the Natural Science Foundation of Minnan Normal University(No.Mk201721)

摘要：

采用室温合成法制备出一系列具有高发光效率和多色发光的CsPbX3钙钛矿量子点(PQDs),反应全过程快速简便,且通过调节不同的卤素组成(Cl,Br,I)可以实现CsPbX3 PQD的多色发光。 通过表征证明,CsPbX3 PQDs呈立方晶型,平均粒径约为10 nm,发射光谱覆盖可见光波长范围为410~630 nm,半峰宽14~38 nm,荧光量子产率10%~90%。 最后将CsPbX3 PQDs应用于发光二极管(LED)器件的制备中,在恒定电压下工作时,能保持LED器件的发光颜色、强度和颜色坐标不变。

关键词: 钙钛矿, 量子点, 发光, 室温合成法, 发光二极管

Abstract:

Highly efficient and polychromatic luminescent CsPbX3 perovskite quantum dots(PQDs) were synthesized under room temperature. The entire reaction is very fast and simple. Polychromatic luminescence of CsPbX3 PQDs can be achieved by adjusting different halide compositions(Cl, Br, I). The as-prepared CsPbX3 PQDs have a cubic morphology with an average size about 10 nm. The photoluminescence of CsPbX3 PQDs has a characteristic of wide visible spectral region of 410~630 nm, narrow emission line-widths of 14~38 nm and quantum yields of 10%~90%. Finally, the CsPbX3 PQDs are successfully applied to prepare light emitting diode(LED) devices. At a constant voltage work for a long time, the emission color, intensity, and color coordinates of the LED device remain unchanged.

Key words: perovskites, quantum dots, luminescence, room temperature synthesis method, light emitting diode

网站版权 © 应用化学     本网站备案：吉ICP备12000082号