Method for making semiconductors for solar cells

Details Method for making semiconductors for solar cells Method for making semiconductors for solar cells

1975-04-09

1976-11-23

Esposito, Michael F.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156614, 156624, 156 17, 427 86, 427 87, 29580, 29582, B01J 1700, B01J 1730

Patent

active

039935337

ABSTRACT:
The invention relates to a method for producing a desired thin semiconductor film for use in solar cells. The desired semiconductor is grown epitaxially on a second semiconductor film which may be epitaxial on a third semiconductor. The second semiconductor has a lower melting point than the desired semiconductor. The temperature of the second semiconductor is increased. This creates a molten state in the second semiconductor and the desired semiconductor is stripped away from the second semiconductor. The desired film may be detached by dissolving the second semiconductor with a chemical agent that dissolves the second semiconductor.

REFERENCES:
patent: 3366516 (1968-01-01), McAleer
patent: 3621565 (1971-11-01), Sandstrom
patent: 3645823 (1972-02-01), Merk
patent: 3655496 (1972-04-01), Ettre
patent: 3846198 (1974-11-01), Wen
patent: 3847686 (1974-12-01), Stein

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