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Towards improved cover glasses for photovoltaic devices
Sheffield Hallam University, UK.
Johnson Matthey Technology Centre, UK.
Johnson Matthey Technology Centre, UK.
Solar Capture Technologies, UK.
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2020 (English)In: Progress in Photovoltaics, ISSN 1062-7995, E-ISSN 1099-159X, Vol. 28, p. 1187-1206Article in journal (Refereed) Published
Abstract [en]

For the solar energy industry to increase its competitiveness, there is a global drive to lower the cost of solar-generated electricity. Photovoltaic (PV) module assembly is material-demanding, and the cover glass constitutes a significant proportion of the cost. Currently, 3-mm-thick glass is the predominant cover material for PV modules, accounting for 10%–25% of the total cost. Here, we review the state-of-the-art of cover glasses for PV modules and present our recent results for improvement of the glass. These improvements were demonstrated in terms of mechanical, chemical and optical properties by optimizing the glass composition, including addition of novel dopants, to produce cover glasses that can provide (i) enhanced UV protection of polymeric PV module components, potentially increasing module service lifetimes; (ii) re-emission of a proportion of the absorbed UV photon energy as visible photons capable of being absorbed by the solar cells, thereby increasing PV module efficiencies and (iii) successful laboratory-scale demonstration of proof of concept, with increases of 1%–6% in Isc and 1%–8% in Ipm. Improvements in both chemical and crack resistance of the cover glass were also achieved through modest chemical reformulation, highlighting what may be achievable within existing manufacturing technology constraints. © 2020 The Authors.

Place, publisher, year, edition, pages
John Wiley and Sons Ltd , 2020. Vol. 28, p. 1187-1206
Keywords [en]
chemical properties, cover glass, mechanical properties, optical properties, photoluminescence, PV modules, strengthening of glass, Competition, Glass, Glass industry, Photons, Photovoltaic cells, Solar energy, Glass compositions, Manufacturing technologies, Photovoltaic devices, Photovoltaic modules, Proof of concept, Service lifetime, Solar energy industries, State of the art, Polymer solar cells
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Natural Sciences
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URN: urn:nbn:se:ri:diva-48531DOI: 10.1002/pip.3334Scopus ID: 2-s2.0-85087834421OAI: oai:DiVA.org:ri-48531DiVA, id: diva2:1466036
Available from: 2020-09-10 Created: 2020-09-10 Last updated: 2023-05-09Bibliographically approved

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Stålhandske, ChristinaGrund Bäck, LinaAndersson, AnneKarlsson, Stefan

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