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