Global to push GA events into
skip to main content

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.
Inventors:
 [1]
  1. (Oak Ridge, TN)
Issue Date:
OSTI Identifier:
870360
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN) ORNL
Patent Number(s):
US 5503898
Contract Number:
AC05-84OR21400
Research Org:
LOCKHEED MARTIN ENRGY SYST INC
Country of Publication:
United States
Language:
English
Subject:
method; producing; textured; substrates; thin-film; photovoltaic; cells; pertains; production; ceramic; manufacture; directly; converting; solar; energy; electrical; elongated; ribbon-like; sheets; substrate; precursor; containing; mixture; particulates; binder; plasticizer; formed; green; provided; mechanically; surface; region; supporting; film; semiconductor; cell; subsequently; cut; substrate-sized; shapes; sintered; pattern; provides; enhanced; light; trapping; collection; substantially; increasing; conversion; efficiency; thin-film photovoltaic; converting solar; substantially increasing; textured substrates; textured surface; surface region; ceramic substrate; photovoltaic cells; conversion efficiency; electrical energy; solar energy; energy conversion; film photovoltaic; photovoltaic cell; provides enhanced; ceramic particulates; substrate provides; surface pattern; precursor containing; enhanced light; textured substrate; film semiconductor; directly converting; ceramic particulate; ceramic substrates; producing textured; /428/136/