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Title: Method for producing textured substrates for thin-film photovoltaic cells

The invention pertains to the production of ceramic substrates used in the manufacture of thin-film photovoltaic cells used for directly converting solar energy to electrical energy. Elongated ribbon-like sheets of substrate precursor containing a mixture of ceramic particulates, a binder, and a plasticizer are formed and then while green provided with a mechanically textured surface region used for supporting the thin film semiconductor of the photovoltaic cell when the sheets of the substrate precursor are subsequently cut into substrate-sized shapes and then sintered. The textured surface pattern on the substrate provides enhanced light trapping and collection for substantially increasing the, solar energy conversion efficiency of thin-film photovoltaic cells. 4 figs.
Inventors:
Issue Date:
OSTI Identifier:
212593
Assignee:
Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States) PTO; SCA: 140501; 360201; PA: EDB-96:063988; SN: 96001565471
Patent Number(s):
US 5,503,898/A/
Application Number:
PAN: 8-229,944
Contract Number:
AC05-84OR21400
Resource Relation:
Other Information: PBD: 2 Apr 1996
Research Org:
Lockheed Martin Energy Syst Inc
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; SOLAR CELLS; SUBSTRATES; CERAMICS; FABRICATION; SINTERING; SURFACE PROPERTIES

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