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Damp-heat-induced degradation of layers in CIGS solar cells

Time: 6/12/2016 4:05:33 PM                       Publisher: Staff

 

By Mirjam Theelen, TNO/Solliance
In Photovoltaics International Volume 31
 
Damp-heat-induced degradation of layers in CIGS solar cells
 
Investors require a guarantee of a minimum lifetime for PV installations. It is tempting to provide such a guarantee for a longer lifetime simply by specifying test conditions that are more and more severe. In this paper it is argued that, with a more detailed understanding of the basic mechanisms determining cell material behaviour under specific exposure conditions, not only can the inherent lifetime of solar cells and modules be improved, but also the predictive value and effectiveness of lifetime testing. An overview of the literature contributions regarding the influence of damp-heat exposure of the layers in Cu(In,Ga)Se2 (CIGS) solar cells is presented.
 
(Source: PV-Tech)
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