Annealing solar cells of inp/cds

Details Annealing solar cells of inp/cds Annealing solar cells of inp/cds

H - Electricity

01

L

345/23

H01L 27/14 (2006.01) H01L 21/00 (2006.01) H01L 31/04 (2006.01)

Patent

CA 1050143

ANNEALING SOLAR CELLS OF InP/CdS Abstract Or the Disclosure Solar cells showing improved efficiency, amounting to about 14 percent for overall solar power conversion, are obtained by annealing InP/CdS solar cells in a slightly reducing atmosphere for about 15 minutes in a temperature range preferably from about 550 degrees centigrade to about 600 degrees centigrade. In an annealing temperature range from 400 degrees centigrade to 625 degrees centigrade, an inversely dependent adjust- ment of annealing time is found desirable. The atmosphere preferably comprises mainly a substantially inert component and typlcally comprises an H2 + N2 mixture, such as forming gas (15% H2 + 85% N2). - i -

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