Chemically modified photoelectrochemical cell

Details Chemically modified photoelectrochemical cell Chemically modified photoelectrochemical cell

1981-01-02

1983-09-06

Weisstuch, Aaron

Chemistry: electrical current producing apparatus, product, and

Deferred action type

Responsive to light

H01M 636

Patent

active

044030223

ABSTRACT:
A chemically modified photoelectrochemical cell including at least one cathode and a plurality of anodes, at least said plurality of anodes being constituted with a semiconductor, each of said plurality of anodes being formed by fixing through covalent bonds molecules of at least one sensitizer dye on the surface of a light-transmissible flat plate of an n-type semiconductor or a light-transmissible flat plate covered with a thin film of an n-type semiconductor, and said plurality of anodes being disposed parallelly to each other and in the form of layers in an electrolyte solution, together with said at least one cathode. Thus, since this photoelectrochemical cell can convert photoenergy of a longer wavelength to electric energy with a high efficiency by making the use of the dye sensitization effect, sufficient practical utility to the photodevices is obtained.

REFERENCES:
patent: 4086398 (1978-04-01), Cartmell et al.
patent: 4255501 (1981-03-01), Osa et al.
T. Osa et al., "Photocell Using Covalently-Bound Dyes on Semiconductor Surfaces," Nature, vol. 264, pp. 349-350 (1976).

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