Chem. J. Chinese Universities ›› 2020, Vol. 41 ›› Issue (8): 1896.doi: 10.7503/cjcu20200182

• Material Chemistry • Previous Articles     Next Articles

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).

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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