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Title: Surface activation of rigid and flexible substrates for thin film photovoltaics using atmospheric pressure plasma
Authors: Lisco, Fabiana
Shaw, Alexander H.
Wright, Alexander R.P.
Iza, Felipe
Walls, Michael
Keywords: Atmospheric plasma
Photovoltaic devices
Surface energy
Surface contamination
Atmospheric deposition processes
Thin films
Issue Date: 2016
Publisher: © IEEE
Citation: LISCO, F. ... et al., 2016. Surface activation of rigid and flexible substrates for thin film photovoltaics using atmospheric pressure plasma. IN: 43rd IEEE Photovoltaics Specialists Conference, Portland, OR, 5-10 June 2016, pp. 2204 - 2209.
Abstract: Reducing fabrication costs is a major driving force in photovoltaic research. Atmospheric processes such as spin coating, spraying or printing are being developed to reduce the cost/Wp of CIGS, CZTS and perovskite solar technologies. For all technologies, surface cleaning and activation prior to thin film deposition is required and for this vacuum based low pressure plasma is a well-established technique. However, a vacuum based surface pre-treatment is not compatible with atmospheric deposition methods. We show that atmospheric-pressure plasmas are highly effective in activating the surface of substrates commonly used in photovoltaic device fabrication and demonstrate its effectiveness on both rigid and flexible substrates. The effectiveness of using atmosphericpressure plasmas to increase surface energy is demonstrated using Water Contact Angle (WCA) measurements and chemical changes are analysed using X-ray Photoelectron Spectroscopy (XPS). Scanning Electron Microscopy (SEM) images show no alteration of the surface morphology of the substrates after the plasma treatment.
Description: Closed access © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Sponsor: The authors are grateful to UKERC for provision of funding through the EPSRC Supergen SuperSolar Hub.
Version: Published
DOI: 10.1109/PVSC.2016.7750026
URI: https://dspace.lboro.ac.uk/2134/23622
Publisher Link: http://dx.doi.org/10.1109/PVSC.2016.7750026
ISBN: 978-1-5090-2724-8
Appears in Collections:Closed Access (Mechanical, Electrical and Manufacturing Engineering)

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