Surface-defect passivation through complexation with organic molecules leads to enhanced power conversion efficiency and long term stability of perovskite photovoltaics

• 作者: Guozhong Cao Weixing Song
• 来源期刊: 中国科学:材料科学(英文版)
• 学科: 化学
• 关键词: materials. PEROVSKITE stability
• 年，卷（期）: 2020,（3）
• 页码范围: 479-480
• 页数: 2页
• 分类号: O62

摘要

Organic-inorganic hybrid lead halide perovskites(e.g.,CH3NH3PbX3,X=Cl,Br,I)possess a unique combination of excellent electronic and photoelectrochemical properties including suitable and tunable bandgap,low exciton binding energy in the range of 9–80 meV,high extinction coefficient,and long electron and hole diffusion lengths[1],which make them excellent photovoltaic materials.