论文信息 - Photothermal effect at TiO2 electrodes in a photoelectrochemical cell

Photothermal effect at TiO2 electrodes in a photoelectrochemical cell

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.

F. Decker | M. Abramovich | J. F. Julião

[1] J. G. Mavroides,et al. Surface photovoltage experiments on SrTiO3 electrodes , 1978 .

[2] P. Kohl,et al. Semiconductor Electrodes XIV . Electrochemistry and Electroluminescence at n‐Type in Aqueous Solutions , 1978 .

[3] A. Bocarsly,et al. Photoelectrolysis of water at high current density: Use of ultraviolet laser excitation , 1977 .

[4] A. Heller,et al. Spectral Response and Efficiency Relations in Semiconductor Liquid Junction Solar Cells , 1977 .

[5] H. Morisaki,et al. Anomalous photoresponse of n‐TiO2 electrode in a photoelectrochemical cell , 1977 .

[6] J. G. Mavroides,et al. Photoelectrolysis of water in cells with SrTiO3 anodes , 1976 .

[7] R. L. Meirhaeghe,et al. Investigation on the frequency‐dependence of the impedance of the nearly ideally polarizable semiconductor electrodes CdSe, CdS and TiO2 , 1975 .

[8] M. Hitchman,et al. Ring Disc Electrodes , 1971 .

[9] D. C. Cronemeyer. Electrical and Optical Properties of Rutile Single Crystals , 1952 .

[10] I. Kolthoff,et al. The Reduction of Oxygen at the Dropping Mercury Electrode , 1941 .