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Development of intermediate layer systems for direct deposition of thin film solar cells onto low cost steel substrates / M.F Menéndez, A. Martinez, P. Sánchez, D. Gomez, L.J. Andrés, L. Haponow, N. Bristow, J. Kettle, Tatyana Korochkina, David Gethin

Solar Energy, Volume: 208, Pages: 738 - 746

Swansea University Authors: Tatyana Korochkina, David Gethin

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Abstract

The functionalisation of low-cost steel over large areas with low cost intermediate layers (ILs) for utilisation as substrates in thin film solar modules is reported. Three approaches for the deposition of ILs are demonstrated and evaluated; a thick SiOx sol–gel based on a one-step acidic catalysis...

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Published in: Solar Energy
ISSN: 0038-092X
Published: Elsevier BV 2020
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa55083
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Abstract: The functionalisation of low-cost steel over large areas with low cost intermediate layers (ILs) for utilisation as substrates in thin film solar modules is reported. Three approaches for the deposition of ILs are demonstrated and evaluated; a thick SiOx sol–gel based on a one-step acidic catalysis applied by spray technique, a commercial screen-printable dielectric ink, and an epoxy-based material (SU8) deposited by screen printing or bar coating. These ILs demonstrated the properties of surface levelling (quantified by mechanical profilometry), electric insulation (tested using breakdown voltage and leakage current) and acted as an anti-diffusion barrier (demonstrated with glow discharge mass spectrometry). Moreover, the performances of amorphous silicon (a-Si:H) and organic photovoltaic (OPV) thin film solar cells grown on carbon and stainless steels (a-Si:H: 5.53% and OPV: 2.40%) show similar performances as those obtained using a reference glass substrate (a-Si:H: 5.51% and OPV: 2.90%). Finally, a cost analysis taking into account both the SiOx sol–gel and the dielectric ink IL was reported to demonstrate the economic feasibility of the steel/IL prototypes.
Keywords: BIPV, Building Integrated Photovoltaic, Steel, OPV, a-Si
College: College of Engineering
Start Page: 738
End Page: 746