Chemistry: electrical and wave energy – Processes and products
Patent
1988-01-26
1989-03-28
Niebling, John F.
Chemistry: electrical and wave energy
Processes and products
204 376, 204 86, 204 92, 204 561, 136260, 136264, C25D 550, H01L 3118, H01L 3106
Patent
active
048161209
ABSTRACT:
A method of electrodepositing a doped compound semiconductor film including tellurium and a metal selected from Group IIB of the Period Table of Elements by adding an effective concentration of dopant ions to the electrolyte bath. Cadmium telluride, mercury cadmium telluride and zinc cadmium telluride may be doped with copper, silver and gold. The conductivity type of the electrodeposited doped layers may be changed by a heat treatment. Thin film photovoltaic cells incorporating the doped layer to form a heterojunction with a semiconductor layer of the opposite conductivity type show substantial improvements in open circuit voltage, fill factor and efficiency over similar devices employing undoped electrodeposited layers.
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Brownfield Richard E.
Ondris Miroslav
Pichler Marty A.
Curatolo Joseph G.
Evans Larry W.
Hsing Ben C.
Niebling John F.
The Standard Oil Company
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