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research article

Extending the Lifetime of Perovskite Solar Cells using a Perfluorinated Dopant

Salado, Manuel
•
Ramos, F. Javier
•
Manzanares, Valentin M.  
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2016
ChemSusChem

The principle limitation of perovskite solar cells is related to their instability and, hence, their limited lifetime. Herein, we employ an imidazolium iodide dopant, 1-methyl-3-(1H,1H,2H,2H-nonafluorohexyl)-imidazolium iodide, containing a perfluorous appendage, which leads to prolonged (unencapsulated, under Ar atmosphere) device activities exceeding 100 days without compromising the power conversion efficiency and other photovoltaic parameters. The extended lifetime of the device can be attributed, at least in part, to the hydrophobic nature of the imidazolium iodide salt. The functionalization of the perovskite material was found to have negligible influence on the perovskite crystal structure.

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Type
research article
DOI
10.1002/cssc.201601030
Web of Science ID

WOS:000384682300026

Author(s)
Salado, Manuel
Ramos, F. Javier
Manzanares, Valentin M.  
Gao, Peng
Nazeeruddin, Mohammad Khaja
Dyson, Paul J.  
Ahmad, Shahzada
Date Issued

2016

Publisher

Wiley-V C H Verlag Gmbh

Published in
ChemSusChem
Volume

9

Issue

18

Start page

2708

End page

2714

Subjects

doping

•

fluorination

•

perovskite

•

solar cells

•

stability

Editorial or Peer reviewed

NON-REVIEWED

Written at

EPFL

EPFL units
LCOM  
GMF  
Available on Infoscience
September 10, 2016
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/129245
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