Solvent engineering towards controlled grain growth in perovskite planar heterojunction solar cells

被引：298

作者：

Rong, Yaoguang ^{[1
,2
]}

Tang, Zhongjia ^{[3
,4
]}

Zhao, Yufeng ^{[1
,2
]}

Zhong, Xin ^{[3
]}

Venkatesan, Swaminathan ^{[1
,2
]}

Graham, Harrison ^{[1
,2
]}

Patton, Matthew ^{[5
]}

Jing, Yan ^{[1
,2
]}

Guloy, Arnold M. ^{[3
,4
]}

Yao, Yan ^{[1
,2
,4
]}

机构：

[1] Univ Houston, Dept Elect & Comp Engn, Houston, TX 77204 USA

[2] Univ Houston, Mat Sci & Engn Program, Houston, TX 77204 USA

[3] Univ Houston, Dept Chem, Houston, TX 77204 USA

[4] Univ Houston, Texas Ctr Superconduct, Houston, TX 77204 USA

[5] Univ Houston, Dept Chem & Biomol Engn, Houston, TX 77204 USA

来源：

NANOSCALE | 2015年 / 7卷 / 24期

关键词：

OPEN-CIRCUIT VOLTAGE; HOLE-CONDUCTOR-FREE; HALIDE PEROVSKITES; DEVICE EFFICIENCY; HYSTERESIS; TRIHALIDE; LENGTHS;

D O I：

10.1039/c5nr02866c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report an effective solvent engineering process to enable controlled perovskite crystal growth and a wider window for processing uniform and dense methyl ammonium lead iodide (MAPbI(3)) perovskite films. Planar heterojunction solar cells fabricated with this method demonstrate hysteresis-free performance with a power conversion efficiency around 10%. The crystal structure of an organic-based Pb iodide intermediate phase is identified for the first time, which is critical in controlling the crystal growth and optimizing thin film morphology.

引用

页码：10595 / 10599

页数：5

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