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. 4 figures.
Inventors:
Issue Date:
OSTI Identifier:
5131542
Assignee:
Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States) PTO; EDB-94-074258
Patent Number(s):
US 5306646; A
Application Number:
PPN: US 7-996328
Contract Number:
AC05-84OR21400
Resource Relation:
Patent File Date: 23 Dec 1992
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; CERAMICS; FABRICATION; PHOTOVOLTAIC CELLS; SUBSTRATES; ENERGY EFFICIENCY; TEXTURE; DIRECT ENERGY CONVERTERS; EFFICIENCY; PHOTOELECTRIC CELLS; 140501* - Solar Energy Conversion- Photovoltaic Conversion; 360201 - Ceramics, Cermets, & Refractories- Preparation & Fabrication