Photothermal effect at TiO2 electrodes in a photoelectrochemical cell
- 1 September 1979
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 35 (5) , 397-399
- https://doi.org/10.1063/1.91138
Abstract
Anomalous photoresponse of n-TiO2 in a photoelectrochemical cell was previously observed to be induced by light of energy lower than the bandgap. This photoresponse was attributed to surface states at the TiO2-electrolyte interface. We studied this effect at stationary and rotating disk TiO2 electrodes and we show that the anomalous photoresponse is a thermal effect due to heating of the crystal surface by the illumination.Keywords
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