Enhanced performance of mesostructured perovskite solar cells with a composite Sn4+-doped TiO2 electron transport layer

被引：0
|
作者：
Shuo Wang
Yu Zhu
Bao Liu
Chengyan Wang
Ruixin Ma
机构：
[1] University of Science and Technology Beijing,School of Metallurgical and Ecological Engineering
[2] University of Science and Technology Beijing,Beijing Key Laboratory of Rare and Precious Metals Green Recycling and Extraction
来源：
Ionics | 2019年 / 25卷
关键词：
Sn-doping TiO; Electron transfer layers; Less hysteresis; Mesostructured;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Recently, perovskite solar cells (PSCs) have attracted more attention. TiO2 as the most common electron transfer material in PSCs has been improved by a serious of methods. In this study, a simple method was used to improve the traditional compact TiO2 properties by doping with Sn4+. It demonstrated that the conductivity of the TiO2 film could be well improved and the band-gap shifted from 3.65 to 3.55 eV with the introduction of Sn ions. The Sn–O–Ti bond was observed in the Sn:TiO2 film according to the results of XPS. The mesostructured PSCs based on Sn:TiO2 exhibited negligible J-V hysteresis behavior, and the Jsc of the device increased distinctly. The power conversion efficiency (PCE) of the Sn:TiO2 device was improved from 14.86 to 17.11%, compared with the reference device.
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页码：4509 / 4516
页数：7
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