Carrier diffusion coefficient is independent of defects in CH3NH3PbBr3 single crystals: Direct evidence

• 作者: Chunyi Zhao Qi Sun Rongrong Cui Jing Leng Wenming Tian Shengye Jin
• 来源期刊: 能源化学
• 年，卷（期）: 2021,（7）
• 页码范围: 441-445
• 页数: 5页
• 语种: 英文

摘要

Organolead halide perovskite solar cells have attracted extensive interests in recent years.Thanks to innovations in materials process and technology, the power conversion efficiency (PCE) of perovskites-based solar cells increases from 3.8％ to 25.2％ [1-4].In evaluating the quality of perovskite materials, a few key photophysical properties such as the lifetime, mobility and diffusionlength of photogenerated carriers are usually measured.