兴奋剂
杂质
Crystal(编程语言)
材料科学
单晶
卤化物
晶体结构
离子
晶体生长
结晶学
光电子学
分析化学(期刊)
无机化学
化学
色谱法
有机化学
计算机科学
程序设计语言
作者
Xiaohua Cheng,Jing Lin,Ye Yuan,Songjie Du,Jun Zhang,Xiaoyuan Zhan,Jianxu Ding,Hao Yu,Guodong Shi
标识
DOI:10.1021/acs.jpcc.8b12428
摘要
As one type of organic–inorganic hybrid lead halide perovskites, MAPbX3 has attracted immense interests in applications of optoelectronic devices because of its remarkable properties. However, the toxicity of lead is considered as the biggest concern which cause environment pollution. The introduction of impurity ions deliberately to replace Pb in the crystal structure is deemed to be an effective way to minimize the effect of lead toxicity while maximizing energy conversion efficiency. On the other hand, iron (Fe) impurities are inevitable impurities present in raw materials. However, the influence of Fe ions on both crystal structure and photoelectric properties is still unknown. So, it is worth exploring the effects of heterovalent Fe2+/Fe3+ on hybrid lead halide perovskite. Here, we first incorporate Fe2+/Fe3+ into the crystal lattice of MAPbCl3 single crystals, and we have successfully grown MAPbCl3 single crystals with various doping concentrations of Fe2+/Fe3+ (0, 10, 20%) and report the crystal growth process, crystal structures, and optical properties of MAPbCl3 single crystals doped with Fe2+/Fe3+. Moreover, the effect of Fe2+/Fe3+ incorporated into MAPbCl3 single crystals on the optoelectronic properties was investigated by utilizing planar photodetectors.
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