Batteries: thermoelectric and photoelectric – Photoelectric – Cells
Patent
1979-07-16
1980-12-16
Weisstuch, Aaron
Batteries: thermoelectric and photoelectric
Photoelectric
Cells
136258, 357 2, 357 30, H01L 3106
Patent
active
042395542
ABSTRACT:
A semiconductor photoelectric conversion device employing a semiconductor layer which has at least one inter-semiconductor heterojunction. The semiconductor layer is composed of at least a first non-single-crystal semiconductor region having a first energy gap, a second non-single-crystal semiconductor region having a second energy gap different from the first energy gap and a third non-single-crystal semiconductor region serving as the heterojunction formed to extend between the first and second semiconductor regions and having an energy gap continuously changing from the first energy gap on the side of the first semiconductor region to the second energy gap on the side of the second semiconductor region. The semiconductor layer is doped with a recombination center neutralizer and a conductive material.
The non-single-crystal semiconductor layer doped with the conductive material is formed on a substrate by a low pressure chemical vapor deposition or glow discharge method. Then, the non-single-crystal semiconductor layer is exposed to a hydrogen gas or a mixture thereof with a small amount of halogen so that the non-single-crystal semiconductor layer is doped with hydrogen or halogen as a recombination center neutralizer, whereby to obtain the semiconductor photoelectric conversion device.
REFERENCES:
patent: 3015762 (1962-01-01), Shockley
patent: 4109271 (1978-08-01), Pankove
M. H. Brodsky et al. "Hydrogenation & Doping Of Amorphous GaAs & Semiconductor Devices Made Therefrom", IBM Technical Disclosure Bulletin, vol. 20, pp. 4962-4963, (1978).
L. E. Stone et al. "Integrally Composed Variable Energy Gap Photovoltaic Cells", Progress in Astronautics & Rocketry, vol. III, (1961), pp. 299-315.
Baker Joseph J.
Ferguson Jr. Gerald J.
Weisstuch Aaron
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