Perovskite/Poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] Bulk Heterojunction for High-Efficient Carbon-Based Large-Area Solar Cells by Gradient Engineering

被引：40
|
作者：
Han, Jianhua [1 ]
Yin, Xuewen [1 ]
Zhou, Yu [1 ]
Nan, Hui [1 ]
Gu, Youchen [1 ]
Tai, Meiqian [1 ]
Li, Jianbao [1 ,2 ]
Lin, Hong [1 ]
机构：
[1] Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 10084, Peoples R China
[2] Hainan Univ, State Key Lab Marine Resource Utilizat South Chin, Haikou 570228, Hainan, Peoples R China
来源：
ACS APPLIED MATERIALS & INTERFACES | 2018年 / 10卷 / 49期
基金：
国家自然科学基金国际合作与交流项目; 中国国家自然科学基金;
关键词：
perovskite; PTAA; gradient engineering; large-area; carbon-based solar cells; HOLE-CONDUCTOR-FREE; LOW-COST; PEROVSKITE; PERFORMANCE; STABILITY; CONTACT; LIGHT; LAYER;
D O I：
10.1021/acsami.8b15399
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The performance of low-temperature carbon based perovskite solar cells (C-PSCs) with high commercial potential was hampered by the inferior interface between the absorber and carbon electrode. In this work, poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] (PTAA) was dissolved in an antisolvent for spin-coating perovskite (CH3NH3PbI3, MAPI) films, which was applied to modify both the MAPI films and the interface between the MAPI layer and carbon electrode by gradient engineering. Finally, the C-PSCs based on MAPI-PTAA gradient bulk heterojunction films achieved a power conversion efficiency of 13.0% with an active area of 1 cm(2), 26% higher than that of pristine MAPI cells, because of the passivated trap states, accelerated hole extraction, and improved crystalline properties in absorber films.
引用
收藏
页码：42328 / 42334
页数：7
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