Degradation observations of encapsulated planar CH3NH3PbI3 perovskite solar cells at high temperatures and humidity (original) (raw)
* Corresponding authors
a Australian Centre for Advanced Photovoltaics (ACAP), Department of Materials Engineering, Monash University, Victoria 3800, Australia
E-mail: yibing.cheng@monash.edu
b Australian Centre for Advanced Photovoltaics (ACAP), School of Chemistry, Monash University, Victoria 3800, Australia
E-mail: leone.spiccia@moansh.edu
c PFPC, School of Chemistry, The University of Melbourne, Victoria 3010, Australia
d CSIRO Manufacturing Flagship, Bayview Ave, Clayton, Victoria 3168, Australia
e Australian Research Council Centre of Excellence for Electromaterials Science, Deakin University, Melbourne Burwood Campus, 221 Burwood Highway, Burwood, Victoria 3125, Australia
f Tech Fellow, The Melbourne Centre for Nanofabrication, 151 Wellington Road, Clayton 3168, Victoria, Australia
Abstract
The stability of encapsulated planar-structured CH3NH3PbI3 (MAPbI3) 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 °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 MAPbI3, as a result of reaction with H2O, and the subsequent reaction of hydroiodic acid, formed during MAPbI3 decomposition, with the silver back contact electrode layer.
- This article is part of the themed collections:10th Anniversary: Most popular articles, RACI100: Celebrating Australian Chemistry and JMC A Top Picks collection: Harnessing the power of the sun
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Article information
DOI
https://doi.org/10.1039/C5TA00358J
Article type
Paper
Submitted
16 Jan 2015
Accepted
05 Mar 2015
First published
09 Mar 2015
Download Citation
J. Mater. Chem. A, 2015,3, 8139-8147
Permissions
Degradation observations of encapsulated planar CH3NH3PbI3 perovskite solar cells at high temperatures and humidity
Y. Han, S. Meyer, Y. Dkhissi, K. Weber, J. M. Pringle, U. Bach, L. Spiccia and Y. Cheng,J. Mater. Chem. A, 2015, 3, 8139DOI: 10.1039/C5TA00358J
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