Enhanced Efficiency and Stability of Perovskite Solar Cells via Anti-Solvent Treatment in Two-Step Deposition Method

被引：100

作者：

Li, Minghua ^{[1
]}

Yan, Xiaoqin ^{[1
]}

Kang, Zhuo ^{[1
]}

Liao, Xinqin ^{[1
]}

Li, Yong ^{[1
]}

Zheng, Xin ^{[1
]}

Lin, Pei ^{[1
]}

Meng, Jingjing ^{[1
]}

Zhang, Yue ^{[1
,2
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China

[2] Univ Sci & Technol Beijing, Beijing Municipal Key Lab New Energy Mat & Techno, Beijing 100083, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2017年 / 9卷 / 08期

基金：

中国国家自然科学基金;

关键词：

antisolvent treatment; PbI2; morphology; stability; TiO2/perovskite heterojunction; perovskite solar cell; GIANT DIELECTRIC-CONSTANT; SEQUENTIAL DEPOSITION; THIN-FILMS; PERFORMANCE; DYE; POLARIZATION; FABRICATION; HYSTERESIS; GROWTH; ACID;

D O I：

10.1021/acsami.7b01136

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The low-cost inorganic organic lead halide perovskite materials become particularly promising for solar cells with high photovoltaic conversion efficiency. The uniform and pinhole free perovskite films play an important role for high-performance solar cells. We demonstrate an antisolvent treatment by controlling the PbI2 morphology to enhance the perovskite conversion and photophysical properties, including high absorption, crystallinity, and rapid carrier transfer. The fabricated perovskite solar cells show tremendous PCE improvement to about 16.1% from 12% with less hysteresis, and retain over 90% initial PCE after 30 days in ambient and dark atmosphere. In prospect, this antisolvent treatment will be a feasible route to prepare high-quality perovskite films including favorite photophysical properties.

引用

页码：7224 / 7231

页数：8

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