高等学校化学学报 ›› 2020, Vol. 41 ›› Issue (8): 1896-1902.doi: 10.7503/cjcu20200182

• 材料化学 • 上一篇    下一篇

脂质体封端CsPbX3(X=Cl,Br,I)纳米晶体的制备及在发光二极管中的应用

王婷婷1, 雷宇涵1, 林宇娟1, 黄加玲1, 刘翠娥1, 郑凤英1,2, 李顺兴1,2   

  1. 1. 闽南师范大学化学化工与环境学院, 漳州 363000;
    2. 现代分离分析科学与技术福建省重点实验室&污染监测与控制福建省高校重点实验室, 漳州 363000
  • 收稿日期:2020-04-05 出版日期:2020-08-10 发布日期:2020-05-09
  • 通讯作者: 李顺兴,男,博士,教授,主要从事分析化学和环境化学研究.E-mail:lishunxing@mnnu.edu.cn E-mail:lishunxing@mnnu.edu.cn
  • 基金资助:
    国家自然科学基金(批准号:21475055,201675077)资助.

Preparation of Liposome-terminated CsPbX3(X=Cl,Br,I) Nanocrystals and Applications in Light-emitting Diode Devices

WANG Tingting1, LEI Yuhan1, LIN Yujuan1, HUANG Jialing1, LIU Cuie1, ZHENG Fengying1,2, LI Shunxing1,2   

  1. 1. College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, China;
    2. Fujian Province Key Laboratory of Modern Analytical Science and Separation Technology&Pollution Monitoring and Control, Minnan Normal University, Zhangzhou 363000, China
  • Received:2020-04-05 Online:2020-08-10 Published:2020-05-09
  • Supported by:
    Supported by the National Natural Science Foundation of China(Nos.21475055, 501675077).

摘要: 以脂质体充当表面封端配体修饰合成后的CsPbX3纳米晶体.封端CsPbX3纳米晶能保持原始形状和粒径大小,相对量子产率提升至(100±3)%,发射光谱在411~626 nm范围内可调.将其存储于空气(温度25℃,相对湿度50%)中150 d仍保持立方晶型.以DOPC-CsPbBr3为颜色转换器可制造显色指数高达91.2的白色发光二极管,应用前景广阔.

关键词: 钙钛矿纳米晶, 脂质体, 表面钝化, 稳定性, 发光二极管

Abstract: Liposomes are used as surface-capped ligands to modify the synthesized CsPbX3 nanocrystals. The capped CsPbX3 nanocrystals maintain their original shape and particle size, improve relative quantum yield by (100±3)%, and have adjustable emission spectrum in the range of 411-626 nm. It maintains cubic crystal form when stored in air(temperature 25℃, relative humidity 50%) for 150 d. The DOPC-CsPbBr3 NCs are used as a color converter to make white light-emitting diodes with a color rendering index of 91.2%, which has a broad application prospect.

Key words: Perovskite nanocrystals, Liposomes, Surface passivation, Stability, Light-emitting diode

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