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Title: Adhesion requirements for photovoltaic modules of polymeric encapsulation
Authors: Zhu, Jiang
Surier, Gabriel
Wu, Dan
Montiel-Chicharro, Daniel
Betts, Thomas R.
Gottschalg, Ralph
Keywords: Photovoltaic
Adhesion
Ageing
Encapsulation
Lamination
Issue Date: 2016
Publisher: © IEEE
Citation: ZHU, J. ... et al, 2016. Adhesion requirements for photovoltaic modules of polymeric encapsulation. Proceedings of 2016 IEEE International Reliability Physics Symposium (IRPS), Pasadena, California, USA, 17th-21st April 2016, pp. 756-760.
Abstract: Adhesion requirements for PV are often discussed but a detailed quantification based on scientific principles is outstanding. A test for the realistic assessment of requirements is presented. The difference between this test and the conventional peel test is that the test is conducted in-situ during ageing experiments in the climatic cabinet at realistic operating temperatures. Weights are attached to the backsheet of tested PV mini-modules to test stability of adhesion as devices being aged. This test is designed to identify the weakest interface of the multilayer encapsulation system and investigate the difference between field tests and failures (not) observed in certification testing. A series of samples was prepared under a wide range of lamination conditions. Different failure modes and ageing characteristics were observed. Some samples suffered quick failure of the adhesive bonds in the encapsulation system while others withstood forces of 20g/cm for 1000 hours. The test allows a clear discrimination between different samples and links closely to operational requirements.
Description: © 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.
Version: Accepted for publication
DOI: 10.1109/IRPS.2016.7574636
URI: https://dspace.lboro.ac.uk/2134/23285
Publisher Link: http://dx.doi.org/10.1109/IRPS.2016.7574636
ISBN: 9781467391382
ISSN: 1541-7026
Appears in Collections:Conference Papers and Contributions (Mechanical, Electrical and Manufacturing Engineering)

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