Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6533912 | Solar Energy Materials and Solar Cells | 2018 | 6 Pages |
Abstract
This work presents an easy and controllable method for introducing I3- ions into organic cation dripping solution via chemical reaction of I-+I2âI3- to effectively decrease the concentration of defects in organic-inorganic lead halide perovskite films. The perovskite solar cells based on additional I3- ions exhibited better photovoltaic performance, with a maximum power conversion efficiency of 18.7%, being about 15% higher than that of the control device. The elucidation of defects and its suppression by employing additional I3- ions provide an important direction for defects elimination and future enhancement of perovskite solar cells efficiency.
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Authors
Qiang Sun, Xiu Gong, Hao Li, Shuangshuang Liu, Xiaojuan Zhao, Yan Shen, Mingkui Wang,