A Fast Deposition-Crystallization Procedure for Highly Efficient Lead Iodide Perovskite Thin-Film Solar Cells

被引：1893

作者：

Xiao, Manda ^{[1
]}

Huang, Fuzhi ^{[2
]}

Huang, Wenchao ^{[2
]}

Dkhissi, Yasmina ^{[2
]}

Zhu, Ye ^{[2
]}

Etheridge, Joanne ^{[2
,3
]}

Gray-Weale, Angus ^{[6
]}

Bach, Udo ^{[2
,4
,5
]}

Cheng, Yi-Bing ^{[2
]}

Spiccia, Leone ^{[1
]}

机构：

[1] Monash Univ, Sch Chem, Clayton, Vic 3800, Australia

[2] Monash Univ, Dept Mat Engn, Clayton, Vic 3800, Australia

[3] Monash Univ, Monash Ctr Electron Microscopy, Clayton, Vic 3800, Australia

[4] Melbourne Ctr Nanofabricat, Clayton, Vic 3168, Australia

[5] CSIRO, Mat Sci & Engn, Clayton, Vic 3169, Australia

[6] Univ Melbourne, Dept Chem, Melbourne, Vic 3010, Australia

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2014年 / 53卷 / 37期

基金：

澳大利亚研究理事会;

关键词：

crystallization; light harvesting; perovskite solar cells; photovoltaics; thin films; TIO2; MECHANISM; TRIHALIDE;

D O I：

10.1002/anie.201405334

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Thin-film photovoltaics based on alkylammonium lead iodide perovskite light absorbers have recently emerged as a promising low-cost solar energy harvesting technology. To date, the perovskite layer in these efficient solar cells has generally been fabricated by either vapor deposition or a two-step sequential deposition process. We report that flat, uniform thin films of this material can be deposited by a one-step, solvent-induced, fast crystallization method involving spin-coating of a DMF solution of CH3NH3PbI3 followed immediately by exposure to chlorobenzene to induce crystallization. Analysis of the devices and films revealed that the perovskite films consist of large crystalline grains with sizes up to microns. Planar heterojunction solar cells constructed with these solution-processed thin films yielded an average power conversion efficiency of 13.9 +/- 0.7% and a steady state efficiency of 13% under standard AM 1.5 conditions.

引用

页码：9898 / 9903

页数：6

共 42 条

[1] High-Performance Perovskite-Polymer Hybrid Solar Cells via Electronic Coupling with Fullerene Monolayers [J].