Promoting crystalline grain growth and healing pinholes by water vapor modulated post-annealing for enhancing the efficiency of planar perovskite solar cells

• Published in: Journal of materials chemistry. A, Materials for energy and sustainability Vol. 4; no. 35; pp. 13458 - 13467
• Main Authors: Ge, Qian-Qing, Ding, Jie, Liu, Jie, Ma, Jing-Yuan, Chen, Yao-Xuan, Gao, Xiao-Xin, Wan, Li-Jun, Hu, Jin-Song
• Format: Journal Article
• Language: English
• Published: 01.01.2016
• Subjects: annealing; Atmospheres; Crystal structure; crystals; Grains; hysteresis; Perovskites; Photovoltaic cells; Pinholes; Solar cells; Water vapor

Mixed organicinorganic halide perovskite materials have been successfully used as light harvesters in efficient solar cells. Developing reproducible and manageable processes to prepare large-scale highly-crystalline perovskite films with large grains for reducing charge recombination at grain bounda...