Degradation observations of encapsulated planar CH<inf>3</inf>NH<inf>3</inf>PbI<inf>3</inf> perovskite solar cells at high temperatures and humidity

Han, Yu, Meyer, Steffen, Dkhissi, Yasmina, Weber, Karl, Pringle, Jennifer M., Bach, Udo, Spiccia, Leone and Cheng, Yi-Bing 2015, Degradation observations of encapsulated planar CH3NH3PbI3 perovskite solar cells at high temperatures and humidity, Journal of materials chemistry a, vol. 3, no. 15, pp. 8139-8147, doi: 10.1039/c5ta00358j.

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Title Degradation observations of encapsulated planar CH3NH3PbI3 perovskite solar cells at high temperatures and humidity
Author(s) Han, Yu
Meyer, Steffen
Dkhissi, Yasmina
Weber, Karl
Pringle, Jennifer M.ORCID iD for Pringle, Jennifer M.
Bach, Udo
Spiccia, Leone
Cheng, Yi-Bing
Journal name Journal of materials chemistry a
Volume number 3
Issue number 15
Start page 8139
End page 8147
Total pages 9
Publisher Royal Society of Chemistry
Place of publication Cambridge, Eng.
Publication date 2015-04-21
ISSN 2050-7488
Summary 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.
Language eng
DOI 10.1039/c5ta00358j
Field of Research 091205 Functional Materials
030303 Optical Properties of Materials
Socio Economic Objective 850504 Solar-Photovoltaic Energy
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Royal Society of Chemistry
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Document type: Journal Article
Collection: Institute for Frontier Materials
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