Efficient planar heterojunction mixed-halide perovskite solar cells deposited via spray-deposition

被引：676

作者：

Barrows, Alexander T. ^{[1
]}

Pearson, Andrew J. ^{[1
]}

Kwak, Chan Kyu ^{[2
]}

Dunbar, Alan D. F. ^{[2
]}

Buckley, Alastair R. ^{[1
]}

Lidzey, David G. ^{[1
]}

机构：

[1] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England

[2] Univ Sheffield, Dept Chem & Biol Engn, Sheffield S1 3JD, S Yorkshire, England

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2014年 / 7卷 / 09期

基金：

英国工程与自然科学研究理事会;

关键词：

HIGH-PERFORMANCE; POLYMER; TEMPERATURE;

D O I：

10.1039/c4ee01546k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report the use of ultra-sonic spray-coating under ambient conditions as a deposition technique for the fabrication of planar heterojunction CH3NH3PbI3-xClx perovskite solar cells. We make a first optimization of processing parameter space using this deposition technique, and explore the role of the temperature of the substrate during spray-casting, the volatility of the casting solvent and the post deposition anneal on determining the efficiency of the resultant solar cells. We find that maximum device efficiency is correlated with the creation of dense films having a surface coverage above 85%. When such films are incorporated into a solar cell device, power conversion efficiencies of up to 11% are realized. These results demonstrate that spray-coating can be used in the large-area, low-cost manufacture of high efficiency solution-processed perovskite solar cells.

引用

页码：2944 / 2950

页数：7

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