Bi³⁺-doped CH₃NH₃PbI₃: Red-shifting absorption edge and longer charge carrier lifetime

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• 作者：Ruiqi Wang^a ; Xian Zhang^a ; Jianqiao He^b ; Cheng Ma^a ; Li Xu^c ; Peng Sheng^c ; Fuqiang Huang^a ; ^b ; ^{huangfq@pku.edu.cn}
• 关键词：Hybrid perovskite ; Doping ; Band gap energy ; Charge carrier lifetime
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：25 February 2017
• 年：2017
• 卷：695
• 期：Complete
• 页码：555-560
• 全文大小：984 K
• 卷排序：695

文摘

Bi3+-doped CH3NH3PbI3 crystals were synthesized via a cooling crystallization process in aqueous solution. This doping lead to obvious bandgap narrowing. The doping of Bi3+ lead to an almost twice longer charge carrier lifetime.