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MDPI, Polymers, 1(8), p. 1, 2015

DOI: 10.3390/polym8010001

2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC)

DOI: 10.1109/pvsc.2015.7356178

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Comparative Indoor and Outdoor Degradation of Organic Photovoltaic Cells via Inter-laboratory Collaboration

Journal article published in 2015 by Charles Owens, Gretta Mae Ferguson, Martin Hermenau, Eszter Voroshazi, Yulia Galagan, Birger Zimmermann, Roland Rösch, Dechan Angamo, Dechan Angmo ORCID, Gerardo Teran-Escobar, Christian Uhrich, Ronn Andriessen, Harald Hoppe, Uli Würfel, Monica Lira-Cantu and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

We report on the degradation of organic photovoltaic (OPV) cells in both indoor and outdoor environments. Eight different research groups contributed state of the art OPV cells to be studied at Pomona College. Power conversion efficiency and fill factor were determined from IV curves collected at regular intervals over six to eight months. Similarly prepared devices were measured indoors, outdoors, and after dark storage. Device architectures are compared. Cells kept indoors performed better than outdoors due to the lack of temperature and humidity extremes. Encapsulated cells performed better due to the minimal oxidation. Some devices showed steady aging but many failed catastrophically due to corrosion of electrodes not active device layers. Degradation of cells kept in dark storage was minimal over periods up to one year. cop. 2015 by the authors.