Solution processed multilayer cadmium-free blue/violet emitting quantum dots light emitting diodes

被引:41
作者
Xiang, Chaoyu [1 ]
Koo, Wonhoe [1 ]
Chen, Song [1 ]
So, Franky [1 ]
Liu, Xiong [2 ]
Kong, Xiangxing [2 ]
Wang, Yunjun [2 ]
机构
[1] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA
[2] Mesolight LLC, Little Rock, AR 72209 USA
基金
美国国家科学基金会;
关键词
ZNSE NANOCRYSTALS; ELECTROLUMINESCENCE; BRIGHT; POLY(N-VINYLCARBAZOLE); POLYMER; DEVICES; LAYER;
D O I
10.1063/1.4738375
中图分类号
O59 [应用物理学];
学科分类号
摘要
We demonstrate blue/violet emitting devices based on cadmium-free zinc selenide/zinc sulfide core/shell quantum dots. Using poly(N-vinylcarbazole) with a low lying highest occupied molecular orbital energy for the hole transporting layer, enhanced hole injection was observed, resulting in efficient blue/violet emitting devices. The device charge balance was further enhanced by tuning the thicknesses of the hole transporting layer and quantum dot emitting layer. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4738375]
引用
收藏
页数:4
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