Journal
SOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume 95, Issue 7, Pages 1889-1895Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solmat.2011.02.013
Keywords
Arrhenius; Weathering; Durability; Accelerated; OPV; Organic solar cells
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A mathematical model based on the Arrhenius equation is used to determine the acceleration of temperature dependent degradation processes affecting the performance of polymeric PV modules in artificial weathering over two benchmark climates. To take into account the natural variability of stress factors in outdoor environments, equivalent temperatures corresponding to photothermally and thermally activated degradation processes were calculated using detailed temperature and radiation data for these modules. Temperature and radiation data for the accelerated laboratory weathering part were derived from the implementation of an international standard for the weathering of plastics. Depending on the value of the activation energy and the reference outdoor location, acceleration factors ranging from 3 to 11 were calculated. (C) 2011 Elsevier B.V. All rights reserved.
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