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Medientyp: E-Artikel Titel: 17.6% efficient tricrystalline silicon solar cells with spatially uniform texture Beteiligte: Schmiga, Christian; Schmidt, Jan; Metz, Axel; Endrös, Arthur; Hezel, Rudolf Erschienen: Wiley, 2003 Erschienen in: Progress in Photovoltaics: Research and Applications Sprache: Englisch DOI: 10.1002/pip.479 ISSN: 1062-7995; 1099-159X Schlagwörter: Electrical and Electronic Engineering ; Condensed Matter Physics ; Renewable Energy, Sustainability and the Environment ; Electronic, Optical and Magnetic Materials Entstehung: Anmerkungen: Beschreibung: <jats:title>Abstract</jats:title><jats:p>Up to now solar cells fabricated on tricrystalline Czochralski‐grown silicon (tri‐Si) have shown relatively low short‐circuit current densities of about 31–33 mA/cm<jats:sup>2</jats:sup> because the three {110}‐oriented grains cannot effectively be textured by commonly used anisotropic etching solutions. In this work, we have optimised a novel chemical texturing step for tri‐Si and integrated it successfully into our solar cell process. Metal/insulator/semiconductor‐contacted phosphorus‐diffused n<jats:sup>+</jats:sup>p junction silicon solar cells with a silicon‐dioxide‐passivated rear surface and evaporated aluminium contacts were manufactured, featuring a spatially uniform surface texture over all three grains on both cell sides. Despite the simple processing sequence and cell structure, an independently confirmed record efficiency of 17.6% has been achieved. This excellent efficiency is mainly due to an increased short‐circuit current density of 37 mA/cm<jats:sup>2</jats:sup> obtained by substantially reduced reflection and enhanced light trapping. Copyright © 2003 John Wiley & Sons, Ltd.</jats:p>