@article {19554,
	title = {Enhancing the open circuit voltage of dye sensitizedsolar cells by surface engineering of silica particles in agel electrolyte},
	journal = {J. Mater. Chem. A},
	volume = {2013, 1},
	year = {2013},
	pages = {10142{\textendash}10147},
	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+\&nbsp;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.},
	author = {Etgar Lioz and Guillaume Schuchardt and Daniele Costenaro and Fabio Carniato and Chiara Bisio and Shaik M. Zakeeruddin and Mohammad K. Nazeeruddin and Leonardo Marchese and Michael Graetzel}
}
