Abstract
FUJISHIMA and Honda1 have described a novel photochemical cell with an open circuit e.m.f. of up to 0.5 V which they indicated had a capability for water photolysis. The anode consisted of a TiO2 n-type single crystal which was illuminated by light of wavelength shorter than 415 nm. This corresponds to the 3.0 eV band gap of TiO2 (refs 2–4).
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References
Fujishima, A., and Honda, K., Nature, 238, 37 (1972).
Fujishima, A., Honda, K., and Kikuchi, S., J. Chem. Soc. Japan (Kogyo Kagaku Zasshi), 72, 108 (1969).
Paleocrassas, S. N., Solar Energy, 16, 45 (1974).
Cronemeyer, D. C., Phys. Rev., 87, 876 (1952).
Boddy, P. J., J. electrochem. Soc., 115, 199 (1968).
Barksdale, J., Titanium, Its Occurrence, Chemistry, and Technology, 74 (Ronald Press, New York, 1966).
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KEENEY, J., WEINSTEIN, D. & HAAS, G. Electricity from photosensitisation of titanium. Nature 253, 719–720 (1975). https://doi.org/10.1038/253719a0
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DOI: https://doi.org/10.1038/253719a0
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