pH-Dependence of spectral sensitization at semiconductor electrodes.
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概要
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For an interpretation of the pH-dependence of the sensitized photocurrent at semiconductor electrodes, measurements have been carried out on n-type TiO<SUB>2</SUB> and CdS single crystal electrodes. As sensitizing dyes, rhodamine B and 3,3′-diethylthiacarbocyanine iodide which remain stable in a sufficiently wide pH range were used. It has been found that the logarithm of the sensitized photocurrent at TiO<SUB>2</SUB> electrode depends linearly on the pH of the electrolyte solution, whereas the sensitized photocurrent shows practically no pH-dependence at CdS electrode. These observations have been accounted for on the basis of the different pH-dependence of flatband potentials of these semiconductor electrodes.
- 公益社団法人 日本化学会の論文
著者
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Honda Ken-ichi
Department Of Obstetrics And Gynecology Osaka City University Medical School
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Fujishima Akira
Department Of Applied Chemistry Faculty Of Engineering The University Of Tokyo
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WATANABE Tadashi
Department of Environmental Science and Resources, Faculty of Agriculture, Tokyo-Noko- University
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Tatsuoki Osamu
Department of Industrial Chemistry, Faculty of Engineering, University of Tokyo
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