CsPbBr3/CdS Core/Shell Structure Quantum Dots for Inverted Light-Emitting Diodes Application

被引：40
作者：
Tang, Xiaosheng [1 ]
Yang, Jie [1 ]
Li, Shiqi [1 ]
Chen, Weiwei [1 ]
Hu, Zhiping [1 ]
Qiu, Jing [1 ]
机构：
[1] Chongqing Univ, Coll Optoelect Engn, Key Lab Optoelect Technol & Syst, Minist Educ, Chongqing, Peoples R China
来源：
FRONTIERS IN CHEMISTRY | 2019年 / 7卷
基金：
中国国家自然科学基金;
关键词：
semiconductors; luminescence; core/shell structure; quantum dots; light-emitting diode; BRIGHT; NANOCRYSTALS; EMISSION; CSPBX3; BR;
D O I：
10.3389/fchem.2019.00499
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Novel CsPbBr3/CdS core/shell structure quantum dots (QDs) were successfully synthesized using a facile hot-injection method. The corresponding CsPbBr3/CdS QDs based light-emitting diodes (QLEDs) were further prepared, which demonstrated the maximum luminance of 354 cd/m(2) and an external quantum efficiency (EQE) of 0.4% with the current efficiency (CE) of 0.3 cd/A. Moreover, the optoelectronic performance of the CsPbBr3/CdS QDs based QLEDs exhibited a comparable enhancement in contrast to the pure CsPbBr3 QDs based QLEDs. Hypothetically, the novel CsPbBr3/CdS structure QDs introduced one new route for advanced light emission applications of perovskite materials.
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页数：5
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