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Title: Silicon solar energy cell having improved back contact and method forming same

Patent ·
OSTI ID:7225374

A silicon solar energy cell having a diffusant junction extending inwardly from one surface, an aluminum--silicon junction of the opposite polarity extending inwardly from the other surface, and a film of aluminum--oxygen--diffusant formed over the aluminum--silicon junction is described. The structure is formed by diffusing an unprotected wafer, coating the diffusant glass so formed on one side of the wafer with aluminum, and heating the wafer.

Assignee:
Solarex Corp.
Patent Number(s):
US 3990097
OSTI ID:
7225374
Resource Relation:
Patent File Date: Filed date 18 Sep 1975
Country of Publication:
United States
Language:
English