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Updated: Sep 5, 2026

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells
Published on: March 19, 2017
Planar-type phosphine oxide molecules enhance the efficiency and stability of perovskite CsPbBr3 QLEDs
Jianxiang Zhao1, Mengdi Sun1, Jisong Yao1
1Key Laboratory of Materials Physics of Ministry of Education, Laboratory of Zhongyuan Light, School of Physics, Zhengzhou University, Zhengzhou 450051, China. yaojisong@zzu.edu.cn.
Abstract:
Bulky tripodal phosphine oxide ligands exhibit weak binding affinity and severe steric hindrance, limiting defect passivation and charge transport, in perovskite QLEDs. A planar phosphine oxide (P-PO) was proposed to enhance coordination interactions and improve charge transport, delivering a maximum EQE of 27.5% and an extended T50 lifetime of 18.0 h at an initial luminance of 2000 cd m-2.
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