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

High efficiency thin-film multiple-gap photovoltaic device

Patent ·
OSTI ID:864523

A photovoltaic device includes at least two solar cells made from Group IV elements or their alloys in the amorphous state mounted on a substrate. The outermost or first cell has a larger bandgap than the second cell. Various techniques are utilized to improve the efficiency of the device.

Research Organization:
Univ. of Delaware, Newark, DE (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC03-79ET23034
Assignee:
University of Delaware (Newark, DE)
Patent Number(s):
4,377,723
Application Number:
06/146323
OSTI ID:
864523
Country of Publication:
United States
Language:
English