|
|||||
|
|
Recombination and charge transfer at the illuminated n-CdTe/electrolyte interface: Simplified kinetic model |
|
| Authors: | D. Lincot J. Vedel |
| Affiliation: | 1. Institute for Material Research (IMO), Hasselt University (partner in Solliance), Wetenschapspark 1, Diepenbeek, 3590, Belgium;2. imec division IMOMEC (partner in Solliance), Wetenschapspark 1, 3590 Diepenbeek, Belgium;3. EnergyVille, Thorpark 8320, Genk, 3600, Belgium;4. imec (partner in Solliance & EnergyVille), Kapeldreef 75, Leuven, 3001, Belgium;5. Department of Electrical Engineering, KU Leuven, Kasteelpark Arenberg 10, 3001 Heverlee, Belgium |
| Abstract: | The experimental behaviour of the illuminated n-cadmium telluride/aqueous electrolyte interface is presented with a precise analysis of the electrical impedance in acidic medium. Band edge shifts and the photocurrent onset position are observed to depend strongly on the pH value. They are interpreted by considering mainly the kinetics of the different reactions at the interface. An analytical model is then developed allowing the fitting of both current-voltage and impedance curves. The equivalent circuit derived from the model explains the origin and the variation of the recombination resistance observed experimentally. |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ | |