Technology Offers Solar Technology/Photovoltaics
Integrated In-Situ Series Connection for Thin Film Solar Cells on flexible substrate via Wires
On flexible substrates like plastic foil the integrated series connection of thin film solar cells is difficult to control. This new invention uses thin wire masks on the bended substrate for pattering the different layers of the solar cell. During the deposition steps the position of the wires shifts several times to provide electrical isolation and monolithic series connection. The method is able to be established for use in an industrial role-to role process.
Patent Portfolio: Patents are granted in Germany (DE 10 2006 004 869) and Europe (EP 1 997 455). Patent applications are pending in USA (US 12/162,301), China and Malaysia.
The Technologie-Lizenz-Büro GmbH is charged with the commercialization by the University of Stuttgart and now offers companies the opportunity to obtain a license to exploit this new and promising technology. For further information please contact:
Dr.-Ing. Hubert Siller
hsiller@tlb.de
Technologie-Lizenz-Büro (TLB)
der Baden-Württembergischen Hochschulen GmbH
Ettlinger Straße 25, D-76137 Karlsruhe, Germany
Tel. +49 721 79004-0, Fax +49 721 79004-79
www.tlb.de
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Anisotropic Texturing of Monocrystalline Silicon Solar Cells: Surfactants as an Alternative to IPA.
Texturing of the front side of solar cells is a well-known technique. For monocrystalline silicon solar cells a wet etchant with typically KOH or NaOH and IPA (isopropyl alcohol) is used. This new process avoids IPA and all its disadvantages. The alternative used surfactants of low concentrations allow a higher process temperature near 98°C. The resulting higher etch rates reduce the process time down to 10 minutes and makes it attractive for an inline-process.
Patent Portfolio: Patents applicated in USA (US 12/438,009), Europe (EP 06 017 318), China and Taiwan.
The Technologie-Lizenz-Büro GmbH is charged with the commercialization by the University of Konstanz and now offers companies the opportunity to obtain a license to exploit this new and promising technology. For further information please contact:
Dr.-Ing. Hubert Siller
hsiller@tlb.de
Technologie-Lizenz-Büro (TLB)
der Baden-Württembergischen Hochschulen GmbH
Ettlinger Straße 25, D-76137 Karlsruhe, Germany
Tel. +49 721 79004-0, Fax +49 721 79004-79
Download Dokument: