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Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten. Stress mapping by confocal raman spectroscopy on solar cells and modules
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Postprint urn:nbn:de:0011-n-5316043 (632 KByte PDF) MD5 Fingerprint: 49020817936aa3e162ebb0b3d0e45e9e © IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. Erstellt am: 29.1.2019 |
| Institute of Electrical and Electronics Engineers -IEEE-: IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 : A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC, 10-15 June 2018, Waikoloa Village, HI, USA Piscataway, NJ: IEEE, 2018 ISBN: 978-1-5386-8529-7 ISBN: 978-1-5386-8530-3 S.3613-3617 |
| World Conference on Photovoltaic Energy Conversion (WCPEC) <7, 2018, Waikoloa/Hawaii> Photovoltaic Specialists Conference (PVSC) <45, 2018, Waikoloa/Hawaii> Photovoltaic Science and Engineering Conference (PVSEC) <28, 2018, Waikoloa/Hawaii> European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC) <34, 2018, Waikoloa/Hawaii> |
| Bundesministerium fur Wirtschaft und Energie BMWi (Deutschland) 0325825B |
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| Englisch |
| Konferenzbeitrag, Elektronische Publikation |
| Fraunhofer ISE () |
| stress; photovoltaic cell; finite element analysis; stress measurement |
Abstract
In this work, we show the latest progress in the confocal micro-Raman spectroscopy for determination of stress within embedded solar cells. We present measurements proving that the module front glass has no influence on the stress measurement. We also present the first large area stress mapping on a quarter solar cell within a single-cell laminate. A stress map of the busbar end shows the superposition of the soldering induced tensile stress at the end of a busbar and the overall compressive stress from lamination. The stress mappings show the same trend as finite element simulations. We obtain a maximum relative compressive stress in the center of the laminated solar cell of about 50 MPa from the Raman spectroscopy and the FEM simulation.