廖良生教授课题组与河南师范大学刘玉芳教授课题组合作在Advanced Functional Materials上发表论文

发布时间:2020-01-09访问量:10设置

题目:

Synergistic Effect of Dual Ligands on Stable Blue Quasi-2D Perovskite Light-Emitting Diodes

作者:

Yan Jin1, Zhao-Kui Wang,*, 1 Shuai Yuan,1 Qiang Wang,1 Chaochao Qin,2 Kai-Li Wang,1 Chong Dong,1 Meng Li,1 Yufang Liu,* 1 and Liang-Sheng Liao*, 1

单位:

1Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China.

2Henan Key Laboratory of Infrared Materials & Spectrum Measures and Applications, Henan Normal   University, Xinxiang 453007, China

摘要:

Since the emergence of inorganic–organic hybrid perovskites a few years ago, there have been many promising achievements in the feld of green and red perovskite light-emitting diodes (PeLEDs). Nevertheless, the performance of blue-light PeLEDs faces challenges. In this work, the unique synergy obtained by introducing two different ligands to successfully form quasi-2D perovskite flms, which can exhibit stable blue-light emission, is utilized. The fabricated PeLEDs have a maximum external quantum effciency of 2.62% and a half lifetime (T50) of 8.8 min. Meanwhile, the electroluminescence spectrum with its peak located at 485 nm, demonstrates improved stability by applying different voltage bias. The fnding in this work offers a new way to achieve steady blue PeLEDs with high performance.

影响因子:

15.621

分区情况:

一区

链接:

https://onlinelibrary.wiley.com/doi/full/10.1002/adfm.201908339


责任编辑:朱文昌


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