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Issue 35, 2013
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Enhancing the open circuit voltage of dye sensitized solar cells by surface engineering of silica particles in a gel electrolyte

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Abstract

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 (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.

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

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Publication details

The article was received on 10 Apr 2013, accepted on 20 Jun 2013 and first published on 20 Jun 2013


Article type: Paper
DOI: 10.1039/C3TA11436H
Citation: J. Mater. Chem. A, 2013,1, 10142-10147
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    Enhancing the open circuit voltage of dye sensitized solar cells by surface engineering of silica particles in a gel electrolyte

    L. Etgar, G. Schuchardt, D. Costenaro, F. Carniato, C. Bisio, S. M. Zakeeruddin, M. K. Nazeeruddin, L. Marchese and M. Graetzel, J. Mater. Chem. A, 2013, 1, 10142
    DOI: 10.1039/C3TA11436H

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