Doped hole transport layer for efficiency enhancement in planar heterojunction organolead trihalide perovskite solar cells

被引：269

作者：

Wang, Qi ^{[1
]}

Bi, Cheng ^{[1
]}

Huang, Jinsong ^{[1
]}

机构：

[1] Univ Nebraska, Dept Mech & Mat Engn, Lincoln, NE 68588 USA

来源：

NANO ENERGY | 2015年 / 15卷

关键词：

Organolead trihalide perovskite; Photovoltaic; Hole transport layer; Doping; THIN-FILMS; LENGTHS; GROWTH;

D O I：

10.1016/j.nanoen.2015.04.029

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：

We demonstrated the efficiency of a solution-processed planar heterojunction organometallic trihalide perovskite solar cell can be increased to 17.5% through doping the hole transporting layer for reducing the resistivity. Doped Poly(triaryl amine) (PTAA) by 2,3,5,6-Tetrafluoro7,7,8,8-Tetracyanoquinodimethane (F4-TCNQ) reduced device series resistance by three-folds, increasing the device fill factor to 74%, open circuit voltage to 1.09 V without sacrificing the short circuit current. This study reveals that the high resistivity of currently broadly applied polymer hole transport layer limits the device efficiency, and points a new direction to improve the device efficiency. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：275 / 280

页数：6

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