王照奎教授课题组在Angew. Chem. Int. Ed.上发表论文

发布时间:2023-03-23访问量:212设置


题目:

Low-Dimensional Phase Regulation to Restrain Non-Radiative Recombination for Sky-Blue Perovskite LEDs with EQE Exceeding 15%

作者:

Bin Wang1, Yu-Hang Zhou1, Shuai Yuan1*, Yan-Hui Lou2, Kai-Li Wang1, Yu Xia1, Chun-Hao Chen1, Jing Chen1, Yi-Ran Shi1, Zhao-Kui Wang1*, and Liang-Sheng Liao1 

单位:

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

2College of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou 215006, China.

摘要:

Achieving efficient blue electroluminescence (EL) remains the fundamental challenge that impedes perovskite light-emitting diodes (PeLEDs) towards commercial applications. The bottleneck accounting for the inefficient blue PeLEDs is broadly attributed to the poor-emissive blue perovskite emitters based on either mixed halide engineering or reduced-dimensional strategy. Herein, we report the high-performing sky-blue PeLEDs (490 nm) with the maximum EQE exceeding 15% by incorporating a molecular modifier, namely 4,4'-Difluorophenone, for significantly suppressing the non-radiative recombination and tuning of the low-dimensional phase distribution of quasi-2D blue perovskites, which represents a remarkable paradigm for developing the new generation of blue lighting sources.

影响因子:

16.823

分区情况:

一区

链接:

https://doi.org/10.1002/anie.202219255



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