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U.S. Department of Energy
Office of Scientific and Technical Information

Amorphous silicon solar cell

Patent ·
OSTI ID:5749885

Solar cells having a semiconductor body composed of amorphous silicon which is applied to a substrate coated at least at one surface thereof with aluminum, functioning as a back contact. Recrystallization is prevented by alloying silicon or silicon/titanium into the aluminum layer so that the amounts of silicon within the alloy is, in preferred embodiments, about 1.3% by weight and, with the presence of 0.1% by weight titanium, is at about 1.2% by weight.

Assignee:
Siemens Aktiengesellschaft (Germany, Federal Republic of)
Patent Number(s):
US 4492813
OSTI ID:
5749885
Country of Publication:
United States
Language:
English