Planar Heterojunction Perovskite Solar Cells via Vapor-Assisted Solution Process

被引：2061

作者：

Chen, Qi ^{[1
,2
]}

Zhou, Huanping ^{[1
,2
]}

Hong, Ziruo ^{[1
]}

Luo, Song ^{[1
,2
]}

Duan, Hsin-Sheng ^{[1
,2
]}

Wang, Hsin-Hua ^{[1
,2
]}

Liu, Yongsheng ^{[1
,2
]}

Li, Gang ^{[1
,2
]}

Yang, Yang ^{[1
,2
]}

机构：

[1] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA

[2] Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2014年 / 136卷 / 02期

基金：

美国国家科学基金会;

关键词：

INORGANIC HYBRID MATERIALS; HIGH-EFFICIENCY; LOW-COST; ELECTRON; DEPOSITION; TRANSPORT; LENGTHS;

D O I：

10.1021/ja411509g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Hybrid organic/inorganic perovskites (e.g., CH3NH3PbI3) as light absorbers are promising players in the field of third-generation photovoltaics. Here we demonstrate a low-temperature vapor-assisted solution process to construct polycrystalline perovskite thin films with full surface coverage, small surface roughness, and grain size up to microscale. Solar cells based on the as-prepared films achieve high power conversion efficiency of 12.1%, so far the highest efficiency based on CH3NH3PbI3 with the planar heterojunction configuration. This method provides a simple approach to perovskite film preparation and paves the way for high reproducibility of films and devices. The underlying kinetic and thermodynamic parameters regarding the perovskite film growth are discussed as well.

引用

页码：622 / 625

页数：4

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