Batteries: thermoelectric and photoelectric – Thermoelectric – Radiation pyrometer
Patent
1975-03-28
1976-08-17
Mack, John H.
Batteries: thermoelectric and photoelectric
Thermoelectric
Radiation pyrometer
29572, 148174, 148175, 427 74, 357 16, H01L 3104, B05D 512
Patent
active
039752119
ABSTRACT:
Solar cell elements are produced in accordance with the present invention in which a Cu.sub.2 S thin film is epitaxially formed on a CdS film by vacuum deposition in a heterojunction forming relationship. By a first method a Cu.sub.2 S layer on the order of 1/100 micron in thickness is formed on a CdS polycrystalline thin film by dipping in a solution of cuprous ions. The CdS film itself is less than 5 microns thick and rests on a conductive substrate. After the dipping step the Cu.sub.2 S film is increased to a thickness on the order of 1/10 micron by vapor evaporation of an additional amount of Cu.sub.2 S. By a second method both the CdS and Cu.sub.2 S are entirely vapor deposited on a substrate to achieve approximately the same final structure as the first method.
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Mack John H.
Menzemer C. L.
Weisstuch Aaron
Westinghouse Electric Corporation
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