Quantum Dot Passivation of Halide Perovskite Films with Reduced Defects, Suppressed Phase Segregation, and Enhanced Stability

• Published in: Advanced science Vol. 9; no. 2; pp. e2102258 - n/a
• Main Authors: Hu, Long, Duan, Leiping, Yao, Yuchen, Chen, Weijian, Zhou, Zizhen, Cazorla, Claudio, Lin, Chun‐Ho, Guan, Xinwei, Geng, Xun, Wang, Fei, Wan, Tao, Wu, Shuying, Cheong, Soshan, Tilley, Richard D., Liu, Shanqin, Yuan, Jianyu, Chu, Dewei, Wu, Tom, Huang, Shujuan
• Format: Journal Article
• Language: English
• Published: Germany John Wiley & Sons, Inc 01.01.2022; John Wiley and Sons Inc; Wiley
• Subjects: Annealing; defect; Defects; Engineering; Grain boundaries; halide perovskites; Ligands; Morphology; Optimization techniques; phase segregation; Quantum dots; Scanning electron microscopy; solar cells; Solvents; Spectrum analysis; Thin films; quantum dots; phase segregation; defect; halide perovskites; solar cells

Structural defects are ubiquitous for polycrystalline perovskite films, compromising device performance and stability. Herein, a universal method is developed to overcome this issue by incorporating halide perovskite quantum dots (QDs) into perovskite polycrystalline films. CsPbBr3 QDs are deposited...