Efficient hole-conductor-free, fully printable mesoscopic perovskite solar cells with carbon electrode based on ultrathin graphite

被引：80
|
作者：
Duan, Miao [1 ]
Rong, Yaoguang [1 ]
Mei, Anyi [1 ]
Hu, Yue [1 ]
Sheng, Yusong [1 ]
Guan, Yanjun [1 ]
Han, Hongwei [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan Natl Lab Optoelect, Michael Gratzel Ctr Mesoscop Solar Cells, Wuhan 430074, Hubei, Peoples R China
来源：
CARBON | 2017年 / 120卷
基金：
中国国家自然科学基金;
关键词：
GRAPHENE;
D O I：
10.1016/j.carbon.2017.05.027
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Ultrathin graphite has been applied in hole-conductor-free, fully printable mesoscopic perovskite solar cells as counter electrode. It was found that ultrathin graphite effectively increased the specific surface area of the carbon layer without sacrificing the conductivity. The large specific surface area facilitated the hole collection from the perovskite to carbon layer, correspondingly decreased the charge transfer resistance at the perovskite/carbon interface. Besides, the penetration of perovskite precursor solution in the carbon layer was accelerated due to the highly interconnected channels. As a result, the power conversion efficiency of the printable mesoscopic perovskite solar cell was significantly improved from 12.63% to 14.07% by incorporating ultrathin graphite instead of bulk graphite. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：71 / 76
页数：6
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