题目：

The Influence of the I/Cl Ratio on the Performance of CH₃NH₃PbI_3−xCl_x-Based Solar Cells: Why Is CH₃NH₃I : PbCl₂ = 3 : 1 the “magic” Ratio?

作者：

John A. McLeod,^a,b Zhongwei Wu,^a Baoquan Sun^*a and Lijia Liu^*a,b

单位：

^aJiangsu Key Laboratory for Carbon-based Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, China.

^bSoochow University-Western University Centre for Synchrotron Radiation Research, Soochow University, Suzhou, Jiangsu 215123, China

摘要：

Methylammonium lead trihalide (CH₃NH₃PbI_3−xCl_x) perovskites are usually synthesized from two precursors, CH₃NH₃I and PbCl₂ at a ratio of 3 : 1. It was found that a slight adjustment of the I/Cl ratio in the pre- cursor mixture plays a strong effect on solar cell performance. In this study, perovskites made with different I/Cl ratios were comparatively studied. In combination with X-ray diffraction (XRD) and X-ray absorption fine structure (XAFS) measured at the Pb L₃-edge, we demonstrate that the device perform- ance can be directly correlated to the change in the coordination environment of Pb.

影响因子：

7.394

分区情况：

1区

链接：

http://pubs.rsc.org/en/Content/ArticleLanding/2016/NR/C5NR06217A#!divAbstract