Chemistry: electrical current producing apparatus – product – and – Deferred action type – Responsive to light
Patent
1981-05-14
1983-06-14
Weisstuch, Aaron
Chemistry: electrical current producing apparatus, product, and
Deferred action type
Responsive to light
136255, 136262, 148 333, 204290R, 357 15, 357 30, H01M 636, H01L 3106
Patent
active
043883834
ABSTRACT:
Semiconductor devices comprising p-type phosphorus containing semiconductor materials chosen from InP, GaP and InGaAsP have chemically treated surfaces comprising a monolayer or less of a metal chosen from silver, ruthenium, gold, platinum, and rhodium. Photoelectrochemical electrodes and Schottky barrier photovoltaic cells made from such treated semiconductors have reduced surface or grain boundary carrier recombination.
REFERENCES:
patent: 4273594 (1981-06-01), Heller et al.
patent: 4310405 (1982-01-01), Heller
patent: 4343870 (1982-08-01), Heller et al.
P. Bindra et al., "Electrolytic Deposition of Thin Metal Films on Semiconductor Substrates", J. Electrochem. Soc., vol. 124, pp. 1012-1018 (1977).
W. D. Johnston, Jr., et al., "Effect of Ruthenium Ions on Grain Boundaries In GaAs Thin Film Photovoltaic Devices", J. Electrochem. Soc., vol. 127, pp. 90-95 (1980).
A. Heller et al., "11.5% Solar Conversion Efficiency in the Photocathodically Protected p-InP/V.sup.3+ -V.sup.2+ -HCl/C Semiconductor Liquid Junction Cell", Appl. Phys. Lett., vol. 38, pp. 282-284 (1981).
B. A. Parkinson et al., "Enhanced Photoelectrochemical Solar Energy Conversion by GaAs Surface Modification", Appl. Phys. Lett., vol. 33, pp. 521-523 (1978).
Y. Nakato et al., "The Catalytic Effect of Electrodeposited Metals on the Photo-Reduction of H.sub.2 O at p-Type Semiconductors", Ber. Buns. Gesell fur Physik Chem., vol. 80, pp. 1289-1293 (1976).
H. Yoneyama et al., "Extension of Spectral Response of p-Type GaP Electrodes by Metal Adatoms", J. Electrochem. Soc., vol. 125, pp. 68-74 (1978).
H. Uchida et al., "Surface States Formation Due to Impregnated Hydrogen at P-Type GaP Electrodes with Metal Adatoms", J. Electrochem. Soc., vol. 127, pp. 99-104 (1980).
Bell Telephone Laboratories Incorporated
Laumann Richard D.
Weisstuch Aaron
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