Photocurrent characteristics in Cu2O/Pt and Cu2O/TiO2 photoelectrochemical cells in aqueous and non-aqueous electrolytes |
| |
| Authors: | K A Khan J F Kos |
| |
| Institution: | (1) Dept. of Applied Physics and Electronics, University of Rajshahi, Rajshahi, Bangladesh;(2) Present address: Dept. of Physics and Astronomy, University of Regina, S4S OA2 Regina, Saskatchewan, Canada |
| |
| Abstract: | Photocurrent characteristics of the Cu2O/Pt and Cu2O/TiO2 photoelectro-chemical cells have been presented. In aqueous solution, a slow deterioration of power output occurs approximately
at the rate of 50% per day. Operation in non-aqueous solutions (acetonitrile and ethanol) also produced a deterioration of
power output. However in ethanol, it was found that the deterioration reversed itself and a new cycle of deterioration and
rejuvenation began. These suggest that the deterioration is not due to a chemical reduction process at the electrode surface
but other factors such as migration of charged defect centres in the depletion layer or chemical reaction on the electrode
surface. |
| |
| Keywords: | Photocurrent photoelectrochemical cell aqueous electrolyte non-aqueous electrolyte |
| 本文献已被 SpringerLink 等数据库收录！ |
|
