Degradation observations of encapsulated planar CH3NH3PbI3 perovskite solar cells at high temperatures and humidity

被引：906

作者：

Han, Yu ^{[1
]}

Meyer, Steffen ^{[2
]}

Dkhissi, Yasmina ^{[3
]}

Weber, Karl ^{[4
]}

Pringle, Jennifer M. ^{[5
]}

Bach, Udo ^{[4
,6
]}

Spiccia, Leone ^{[2
]}

Cheng, Yi-Bing ^{[1
]}

机构：

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

[2] Monash Univ, Sch Chem, ACAP, Clayton, Vic 3800, Australia

[3] Univ Melbourne, Sch Chem, PFPC, Melbourne, Vic 3010, Australia

[4] CSIRO Mfg Flagship, Clayton, Vic 3168, Australia

[5] Deakin Univ, Australian Res Council, Ctr Excellence Electromat Sci, Burwood, Vic 3125, Australia

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

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2015年 / 3卷 / 15期

关键词：

HIGH-PERFORMANCE; EFFICIENT; LIGHT; DEPOSITION; FILMS;

D O I：

10.1039/c5ta00358j

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The stability of encapsulated planar-structured CH3NH3PbI3 (MAPbI(3)) perovskite solar cells (PSCs) was investigated under various simulated environmental conditions. The tests were performed under approximately one sun (100 mW cm(-2)) illumination, varying temperature (up to 85 degrees C cell temperature) and humidity (up to 80%). The application of advanced sealing techniques improved the device stability, but all devices showed significant degradation after prolonged aging at high temperature and humidity. The degradation mechanism was studied by post-mortem analysis of the disassembled cells using SEM and XRD. This revealed that the degradation was mainly due to the decomposition of MAPbI(3), as a result of reaction with H2O, and the subsequent reaction of hydroiodic acid, formed during MAPbI(3) decomposition, with the silver back contact electrode layer.

引用

页码：8139 / 8147

页数：9

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