Enhancing the Performance of Perovskite Light-Emitting Diodes via Synergistic Effect of Defect Passivation and Dielectric Screening
oleh: Xuanchi Yu, Jia Guo, Yulin Mao, Chengwei Shan, Fengshou Tian, Bingheng Meng, Zhaojin Wang, Tianqi Zhang, Aung Ko Ko Kyaw, Shuming Chen, Xiaowei Sun, Kai Wang, Rui Chen, Guichuan Xing
| Format: | Article |
|---|---|
| Diterbitkan: | SpringerOpen 2024-05-01 |
Deskripsi
Highlights Synergistic passivation mechanism of the dual functional compound of potassium bromide for metal halide perovskite films, that is through chemical bonding and physical screening towards the various types of defects. Metal-ion additives can simultaneously passivate the defects of halide vacancies with bromine anions and dangling bond defects with metal cations. Achieve the maximum external quantum efficiency of ~21% and maximum luminance of ~60,000 cd m−2.