Effect of aging conditions on the performance of dip coated platinum counter electrode based dye sensitized solar cells

Abstract

Heat (60 °C)-illumination (H-I) leads to higher dissolution of platinum than room temperature-dark (R-D) in DSSC. Apart from this, desorption of additive or ions of electrolyte from TiO2 are also responsible for decay in DSSC performance with aging.

Novel 2D-AuSe nanostructures as effective platinum replacement counter electrodes in dye-sensitized solar cells

“…Dye-sensitized solar cells (DSSCs) have emerged as a powerful photovoltaic technology alternative to conventional silicon solar cells because of their advantages such as low cost, use of environmentally friendly materials, simple fabrication techniques and acceptable photoelectric conversion efficiencies. 1,2 To date, the highest reported efficiency of lab-scale DSSCs is 14.3%, an increase from 7.1-7.9% rst reported in 1991. [3][4][5] A typical DSSC has four main components; a photoanode made of a mesoporous oxide layer (typically, TiO 2 ) deposited on a transparent conductive glass substrate; a monolayer of dye sensitizer covalently bonded to the surface of the TiO 2 , an electrolyte containing redox couple (typically, I À /I 3 À ), and a counter electrode made of a platinum coated conductive glass substrate.…”