Light intensity and temperature dependence on performance of a photoelectrochemical cells of ITO/TiO2/PVC-LiClO4/graphite

The photovoltaic characteristics of a photoelectrochemical cell of ITO/TiO2/PVC-LiClO4/graphite are reported. This paper is concerned with the influence of light intensity and temperature on short-circuit current density, Jsc and open-circuit voltage, Voc of the device. The photoelectrochemical cell material was a screen-printed layer of titanium dioxide onto an ITO-covered glass substrate, which was used as a working electrode of the cell. The solid electrolyte was polivinylchloride-lithium perchlorate. The graphite film serves as a counter electrode of the cell. The current density–voltage characteristics of the device under an illumination of 20, 40, 60, 80 and 100 mW cm−2 light from a tungsten halogen lamp were recorded at 40 °C as well as under an illumination of 100 mW cm−2 at 30, 35, 40, 45 and 50 °C, respectively. It was found that the short-circuit current density, Jsc of the device increases with both light intensity and temperature. The Jsc obtained at 100 mW cm−2 was 1.0 μAcm−2 and that at 50 °C was 0.7 μAcm−2.