Sky-blue perovskite light-emitting diodes based on quasi-two-dimensional layered perovskites

被引：0
作者：
Lu Cheng [1 ]
Yu Cao [1 ]
Rui Ge [1 ]
Ying-Qiang Wei [1 ]
Na-Na Wang [1 ]
Jian-Pu Wang [1 ]
Wei Huang [1 ,2 ]
机构：
[1] Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials,Nanjing Tech University
[2] Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing University of Posts & Telecommunications
来源：
Chinese Chemical Letters | 2017年 / 28卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Perovskite light-emitting diodes; Quasi-2D; Sky-blue emission; Morphology; Solution process;
D O I：
暂无
中图分类号：
TN312.8 [];
学科分类号：
0803 ;
摘要：
A mixed organic(4-phenylbutylamine, 4-PBA) and inorganic(cesium, Cs) cations are used to deposit quasi-two-dimensional layered perovskites. This layered perovskites exhibit good film coverage as twodimensional perovskites and high emission performance close to three-dimensional organic–inorganic hybrid perovskites. Light-emitting diodes(LEDs) are fabricated by using solution process based on the quasi-two-dimensional layered perovskites. The perovskite LEDs exhibit a sky-blue emission with electroluminescence peak at 491 nm and a low turn on voltage at 2.9 V. The maximum external quantum efficiency reaches 0.015% at brightness of 186 cd/m2.
引用
收藏
页码：29 / 31
页数：3
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