Spectral photoresponses of carbon-doped TiO2 film electrodes

被引:67
作者
Noworyta, K [1 ]
Augustynski, J [1 ]
机构
[1] Univ Geneva, Dept Chim Minerale Analyt & Appl, CH-1211 Geneva 4, Switzerland
关键词
D O I
10.1149/1.1695536
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Photoactivities of TiO2 film electrodes formed in the flame of a burner fed with various gas mixtures were examined both under a relatively intense near UV light and under simulated solar illumination. The most significant shift of the spectral photoresponse (up to 425 nm) and the largest solar light induced photocurrents were observed for the TiO2 films grown in the reductive zone of a propane/butane-oxygen flame. The photoelectrochemical characteristics of the electrodes largely changed with the preparation conditions. Raman spectra revealed the presence of disordered carbon in the flame-formed samples in addition to lower nonstoichiometric titanium oxides identified by XRD. (C) 2004 The Electrochemical Society.
引用
收藏
页码:E31 / E33
页数:3
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