Photo-electrochemical cell

Details Photo-electrochemical cell Photo-electrochemical cell

1988-10-07

1990-05-22

Weisstuch, Aaron

Chemistry: electrical current producing apparatus, product, and

Deferred action type

Responsive to light

H01M 636

Patent

active

049277219

ABSTRACT:
The regenerative photo-electrochemical cell comprises a polycrystalline metal oxide semiconductor layer having a substantially monomolecular chromophore layer in a surface zone. The surface of the metal oxide semiconductor layer has a roughness factor of more than 20, preferably more than 200. Photo-electrochemical cells having such metal oxide semiconductors have good monochromatic efficiency using redox systems with iodides or bromides.

REFERENCES:
T. Yoko et al., Res. Rep. Fac. Eng. Mie Unive., vol. 12, pp. 49-64 (1987), English pp. 59-74.
N. Vlachopoulos et al., Surface Science, vol. 189/190, pp. 823-831 (1987).
T. Osa et al., Nature, vol. 264, pp. 349-350 (1976).
W. D. Clark et al., J. Am. Chem. Soc., vol. 99, No. 14, pp. 4676-4682 (1977).

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