TY - JOUR
T1 - Enhancing the open circuit voltage of dye sensitized solar cells by surface engineering of silica particles in a gel electrolyte
AU - Etgar, Lioz
AU - Schuchardt, Guillaume
AU - Costenaro, Daniele
AU - Carniato, Fabio
AU - Bisio, Chiara
AU - Zakeeruddin, Shaik M.
AU - Nazeeruddin, Mohammad K.
AU - Marchese, Leonardo
AU - Graetzel, Michael
PY - 2013/9/21
Y1 - 2013/9/21
N2 - 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 NH 3+ groups were prepared, and fully characterized. The best photovoltaic performance was observed using the NH2 modified silica particles giving an open circuit voltage (Voc) of 815 mV, a short-circuit current (Jsc) 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 Voc of DSSCs by around 60 mV compared to pure ionic liquid electrolyte based DSSCs.
AB - 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 NH 3+ groups were prepared, and fully characterized. The best photovoltaic performance was observed using the NH2 modified silica particles giving an open circuit voltage (Voc) of 815 mV, a short-circuit current (Jsc) 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 Voc of DSSCs by around 60 mV compared to pure ionic liquid electrolyte based DSSCs.
UR - http://www.scopus.com/inward/record.url?scp=84881630172&partnerID=8YFLogxK
U2 - 10.1039/c3ta11436h
DO - 10.1039/c3ta11436h
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AN - SCOPUS:84881630172
SN - 2050-7488
VL - 1
SP - 10142
EP - 10147
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
IS - 35
ER -