Print Email Facebook Twitter Fundamental Mechanisms Behind the Reverse Characteristic of Cu(In,Ga)Se2 Solar Cells Title Fundamental Mechanisms Behind the Reverse Characteristic of Cu(In,Ga)Se2 Solar Cells Author Bakker, N.J. (TU Delft Photovoltaic Materials and Devices; TNO) Assen, Suzanne (TNO) Rasia, Alix (TNO) Barreau, Nicolas (Université de Nantes) Weeber, A.W. (TU Delft Photovoltaic Materials and Devices; TNO) Theelen, Mirjam (TNO) Date 2022 Abstract Partial shading of PV modules can lead to degradation of the shaded cells. The degradation originates from a reverse bias voltage over the shaded cells. In order to mitigate reverse bias damage in Cu(In, Ga)Se2 (CIGS) modules, a good understanding of the fundamental mechanisms governing the reverse characteristic is required. In this study, a model is introduced that describes this behavior for CIGS cells. In this model, the low and non-Ohmic leakage current is accounted for by the space charge limited current component. A sharp increase in current that is typically observed in the CIGS reverse characteristics can be described by Fowler-Nordheim tunneling. This model has been validated against measurements performed at different temperatures and illumination intensities, and is able to describe the dependencies of the reverse bias behavior on both temperature and illumination. Subject Cu(In,Ga)Se2 (CIGS)partial shadingreverse biasthin-film PV To reference this document use: http://resolver.tudelft.nl/uuid:ad067a26-9c4e-4fee-9612-1b2b41db7bab DOI https://doi.org/10.1109/JPHOTOV.2022.3196827 Embargo date 2023-07-01 ISSN 2156-3381 Source IEEE Journal of Photovoltaics, 12 (6), 1412-1417 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2022 N.J. Bakker, Suzanne Assen, Alix Rasia, Nicolas Barreau, A.W. Weeber, Mirjam Theelen Files PDF Fundamental_Mechanisms_Be ... _Cells.pdf 1.38 MB Close viewer /islandora/object/uuid:ad067a26-9c4e-4fee-9612-1b2b41db7bab/datastream/OBJ/view