In situ investigation of halide incorporation into perovskite solar cells

被引：8

作者：

Aguiar, Jeffery A. ^{[1
,2
,3
]}

Alkurd, Nooraldeen R. ^{[4
,5
]}

Wozny, Sarah ^{[4
]}

Patel, Maulik K. ^{[6
]}

Yang, Mengjin ^{[1
]}

Zhou, Weilie ^{[4
]}

Al-Jassim, Mowafak ^{[1
]}

Holesinger, Terry G. ^{[7
]}

Zhu, Kai ^{[8
]}

Berry, Joseph J. ^{[8
]}

机构：

[1] Natl Renewable Energy Lab, Mat Sci & Technol Directorate, Golden, CO 80401 USA

[2] Univ Utah, Mat Sci & Engn, Salt Lake City, UT 84122 USA

[3] Idaho Natl Lab, Fuel Design & Dev Directorate, Idaho Falls, ID 83401 USA

[4] Univ New Orleans, Adv Mat Inst, New Orleans, LA 70122 USA

[5] Colorado Sch Mines, Met & Mat Engn, Golden, CO 80401 USA

[6] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA

[7] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87544 USA

[8] Natl Renewable Energy Lab, Chem & Nanosci Ctr, Golden, CO 80401 USA

来源：

MRS COMMUNICATIONS | 2017年 / 7卷 / 03期

关键词：

LIGHT; CHLORINE; STATE;

D O I：

10.1557/mrc.2017.52

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Here we report on the material chemistry following crystallization in the presence of water vapor of chlorinated formamidinium lead-triiodide (NH2CH = NH2PbI3-xClx) perovskite films. We found in-situ exposure to water vapor reduces, or possibly eliminates, the retention of chlorine (Cl) inside NH2CH = NH2PbI3-xClx crystals. There is a strong tendency toward Cl volatility, which indicates the sensitivity of these materials for their integration into solar cells. The requisite for additional efforts focused on the mitigation of water vapor is reported. Based on the in situ results, hot casting (<100 degrees C) in dry conditions demonstrates improved film coverage and Cl retention with efficiencies reaching 12.07%.

引用

页码：575 / 582

页数：8

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