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  4. Enhancing the open circuit voltage of dye sensitized solar cells by surface engineering of silica particles in a gel electrolyte
 
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research article

Enhancing the open circuit voltage of dye sensitized solar cells by surface engineering of silica particles in a gel electrolyte

Etgar, Lioz  
•
Schuchardt, Guillaume
•
Costenaro, Daniele
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2013
Journal Of Materials Chemistry A

We prepared a quasi-solid electrolyte for dye-sensitized solar cells (DSSCs) that consist of ionic liquid and modified silica particles. Commercial bare silica F5 particles and modified silica F5 by NH2 and NH3+ groups were prepared, and fully characterized. The best photovoltaic performance was observed using the NH2 modified silica particles giving an open circuit voltage (V-oc) of 815 mV, a short-circuit current (J(sc)) of 11.23 mA cm(-2), and a fill factor (FF) of 0.75 corresponding to an overall power conversion efficiency of 7.04% at 100 mW cm(-2) AM 1.5. The modification of the silica particles by NH2 groups increases the V-oc of DSSCs by around 60 mV compared to pure ionic liquid electrolyte based DSSCs.

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Type
research article
DOI
10.1039/c3ta11436h
Web of Science ID

WOS:000323132700012

Author(s)
Etgar, Lioz  
•
Schuchardt, Guillaume
•
Costenaro, Daniele
•
Carniato, Fabio
•
Bisio, Chiara
•
Zakeeruddin, Shaik M.  
•
Nazeeruddin, Mohammad K.  
•
Marchese, Leonardo
•
Graetzel, Michael  
Date Issued

2013

Publisher

Royal Society of Chemistry

Published in
Journal Of Materials Chemistry A
Volume

1

Issue

35

Start page

10142

End page

10147

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LPI  
Available on Infoscience
October 1, 2013
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/95878
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