Changes of solar cell parameters during damp-heat exposure

Jiang Zhu, Michael Koehl, Stephan Hoffmann, Karl Anton Berger, Shokufeh Zamini, Ian Bennett, Eric Gerritsen, Philippe Malbranche, Paola Pugliatti, Agnese Di Stefano, Francesco Aleo, Dario Bertani, Fabrizio Paletta, Francesco Roca, Giorgio Graditi, Michele Pellegrino, Oihana Zubillaga, F. J. Cano Iranzo, Alberto Pozza, Tony SampleRalph Gottschalg

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Abstract

The electrical ageing of photovoltaic modules during extended damp-heat tests at different stress levels is investigated for three types of crystalline silicon photovoltaic modules with different backsheets, encapsulants and cell types. Deploying different stress levels allows determination of an equivalent stress dose function, which is a first step towards a lifetime prediction of devices. The derived humidity dose is used to characterise the degradation of power as well as that of the solar cell's equivalent circuit parameters calculated from measured current–voltage characteristics. An application of this to the samples demonstrates different modes in the degradation and thus enables better understanding of the module's underlying ageing mechanisms. The analysis of changes in the solar cell equivalent circuit parameters identified the primary contributors to the power degradation and distinguished the potential ageing mechanism for each types of module investigated in this paper. © 2016 The Authors. Progress in Photovoltaics: Research and Applications published by John Wiley & Sons Ltd. © 2016 The Authors. Progress in Photovoltaics: Research and Applications published by John Wiley & Sons Ltd.
Original languageEnglish
Pages (from-to)1346 - 1358
Number of pages13
JournalProgress in Photovoltaics: Research and Applications
Volume24
Issue number10
DOIs
Publication statusPublished - 1 Oct 2016

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Zhu, J., Koehl, M., Hoffmann, S., Berger, K. A., Zamini, S., Bennett, I., Gerritsen, E., Malbranche, P., Pugliatti, P., Di Stefano, A., Aleo, F., Bertani, D., Paletta, F., Roca, F., Graditi, G., Pellegrino, M., Zubillaga, O., Iranzo, F. J. C., Pozza, A., ... Gottschalg, R. (2016). Changes of solar cell parameters during damp-heat exposure. Progress in Photovoltaics: Research and Applications, 24(10), 1346 - 1358. https://doi.org/10.1002/pip.2793