Chemistry: electrical current producing apparatus – product – and – Deferred action type – Responsive to light
Patent
1983-03-28
1985-07-09
Weisstuch, Aaron
Chemistry: electrical current producing apparatus, product, and
Deferred action type
Responsive to light
204129, 204266, 204278, H01M 636, C25B 102
Patent
active
045282528
ABSTRACT:
A semiconductor photoelectric conversion structure having a PIN junction is assembled as a unitary structure with a redox chamber, with the P (or N) type semiconductor layer of the former being heavily doped and held in contact with an aqueous solution contained in a cell compartment of the redox reaction chamber. By interconnecting a second electrode connected to the N (or P) type semiconductor layer of the semiconductor photoelectric conversion structure and a first electrode held in contact with an aqueous solution contained in another cell compartment of the redox reaction chamber, H.sub.2 (or O.sub.2) and O.sub.2 (or H.sub.2) gases are released from the first and second cells, respectively. Alternatively, electric power may be generated by connecting a first lead to the P (or N) type layer and a second lead to the second electrode.
REFERENCES:
patent: 4021323 (1977-05-01), Kilby et al.
patent: 4381233 (1983-04-01), Adachi et al.
patent: 4388482 (1983-06-01), Hamakawa et al.
R. Williams, "Schottky Barriers at the Interface Between Amorphous Silicon _& Electrolytes", J. Appl. Physics, vol. 50, pp. 2848-2851, (1979).
J. Manassen et al., "Electrochemical, Solid State, Photochemical, & _Technological Aspects of Photoelectrochemical Energy Converters", _Nature, vol. 263, pp. 97-100, (1976).
M. S. Wrighton, "Photochemistry", Chem. & Eng. News, Sep. 3, 1979, _p. 37.
A. J. Nozik, "Photochemical Diodes", Appl. Phys. Lett., vol. 30, _pp. 567-569, (1977).
Semiconductor Energy Laboratory Co,. Ltd.
Weisstuch Aaron
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