Sky-blue perovskite light-emitting diodes based on quasi-two-dimensional layered perovskites
Sky-blue perovskite light-emitting diodes based on quasi-two-dimensional layered perovskites
复制标题
基于准二维层状钙钛矿的天蓝色钙钛矿发光二极管
DOI：
10.1016/j.cclet.2016.07.001
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发表时间：
2017-01-01
影响因子：
9.1
通讯作者：
Huang, Wei
中科院分区：
文献类型：
--
作者：
Cheng, Lu;Cao, Yu;Huang, Wei
使用混合的有机（4-苯基丁胺，4-PBA）和无机（铯，Cs）阳离子来存款准二维层状钙钛矿。这种层状钙钛矿表现出与二维钙钛矿一样的良好的膜覆盖率和接近三维有机-无机杂化钙钛矿的高发射性能。采用溶液法制备了准二维层状钙钛矿结构的发光二极管。钙钛矿发光二极管具有天蓝色的发光峰，其发光峰位于491 nm，开启电压为2.9 V，最大外量子效率为0.015%，亮度为186 cd/m2。(C)2016中国化学学会、中国医学科学院药物研究所。Elsevier B. V.出版，保留所有权利。
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 two-dimensional 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/m(2). (C) 2016 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.