Enhancing the open circuit voltage of dye sensitizedsolar cells by surface engineering of silica particles in agel electrolyte

Citation:

Etgar Lioz, Guillaume Schuchardt, Daniele Costenaro, Fabio Carniato, Chiara Bisio, Shaik M. Zakeeruddin, Mohammad K. Nazeeruddin, Leonardo Marchese, and Michael Graetzel. 6/2013. “Enhancing the open circuit voltage of dye sensitizedsolar cells by surface engineering of silica particles in agel electrolyte.” J. Mater. Chem. A, 2013, 1, Pp. 10142–10147.
enhancing_the_open_circuit_voltage_of_dye_sensitized_solar_cells_by_surface_engineering_of_silica_particles_in_a_gel_electrolyte.pdf414 KB

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.

Last updated on 12/26/2017