Imperial College London
Alternate

ProfessorSaifHaque

Faculty of Natural Sciences, Department of Chemistry

Professor of Chemistry
 
 
 
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Contact

 

+44 (0)20 7594 1886s.a.haque

 
 
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Location

 

110HMolecular Sciences Research HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Bryant:2016:10.1039/C6EE00409A,
author = {Bryant, D and Aristidou, N and Pont, S and Sanchez-Molina, I and Chotchunangatchaval, T and Wheeler, S and Durrant, JR and Haque, SA},
doi = {10.1039/C6EE00409A},
journal = {Energy and Environmental Science},
pages = {1655--1660},
title = {Light and oxygen induced degradation limits the operational stability of methylammonium lead triiodide perovskite solar cells},
url = {http://dx.doi.org/10.1039/C6EE00409A},
volume = {9},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Here,wedemonstrate thatlightandoxygen-induceddegradationis themain reason forthelowoperationalstability ofmethylammoniumlead triiodide (MeNH3PbI3) perovskitesolar cells exposed to ambient conditions. When exposed to both light and dry air,unencapsulatedMeNH3PbI3 solarcellsrapidlydegradeontimescalesofminutestoa fewhours. Thisrapiddegradationisalsoobservedunderelectricallybias driven currentflowinthedarkin thepresenceofO2. In contrast, significantly slowerdegradationisobservedwhentheMeNH3PbI3 devicesareexposedtomoisturealone(e.g.85%relativehumidityinN2). Weshowthatthislightandoxygeninduceddegradationcanbesloweddownbytheuseofinterlayersthatareabletoremoveelectronsfromtheperovskitefilmbeforetheycan reactwithoxygen to formO2-.Theseobservationsdemonstrate that theoperationalstability of electronic and optoelectronic devices that exploit the electron transportingproperties of MeNH3PbI3 will be critically dependent upon the use of suitable barrierlayers and device configurations to mitigate the oxygen sensitivity of this remarkablematerial.
AU  - Bryant,D
AU  - Aristidou,N
AU  - Pont,S
AU  - Sanchez-Molina,I
AU  - Chotchunangatchaval,T
AU  - Wheeler,S
AU  - Durrant,JR
AU  - Haque,SA
DO  - 10.1039/C6EE00409A
EP  - 1660
PY  - 2016///
SN  - 1754-5692
SP  - 1655
TI  - Light and oxygen induced degradation limits the operational stability of methylammonium lead triiodide perovskite solar cells
T2  - Energy and Environmental Science
UR  - http://dx.doi.org/10.1039/C6EE00409A
UR  - https://pubs.rsc.org/en/content/articlelanding/2016/EE/C6EE00409A#!divAbstract
UR  - http://hdl.handle.net/10044/1/30873
VL  - 9
ER  -
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