Suppressing photoinduced phase segregation in mixed halide perovskites

• 作者: Lili Ke Lixiu Zhang Liming Ding
• 来源期刊: 半导体学报（英文版）
• 年，卷（期）: 2022,（2）
• 所属期刊栏目: RESEARCH HIGHLIGHTS
• 页码范围: 1-4
• 页数: 4页
• 语种: 英文
• DOI: 10.1088/1674-4926/43/2/020201

摘要

Mixed halide perovskites (MHPs) have attracted atten-tion due to their tunability of optoelectronic properties and es-pecially the bandgap,which is useful for tandem solar cells.Un-fortunately,MHPs undergo phase separation under illumina-tion.It can form low-bandgap iodide-rich phases as charge re-combination centers,causing the reduction of open-circuit voltage (Voc) and device photoinstability.To address this is-sue,many approaches have been used[1].