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ECN publicatie:
Titel:
Design of 4-terminal solar modules combining thin-film wide-bandgap top cells and c-Si bottom cells
 
Auteur(s):
 
Gepubliceerd door: Publicatie datum:
ECN Zonne-energie 30-9-2015
 
ECN publicatienummer: Publicatie type:
ECN-W--15-057 Artikel wetenschap tijdschrift
 
Aantal pagina's:
8  

Gepubliceerd in: Energy Procedia (Elsevier), , 2015, Vol.77, p.500-507.

Samenvatting:
Optical simulations of 4-terminal hybrid tandem modules combining high-efficiency crystalline silicon (c-Si) cells with three different thin-film top cells respectively are presented. We considered three types of thin film PV cells: 1. Enlarged-bandgap oxygenated amorphous silicon (a-SiO:H) cells, 2. Wide-bandgap chalcopyrite (CuGaSe2) cells, and 3. Perovskite (CH3NH3PbI3) cells. A methodology for evaluating the efficiency gain of the 4-terminal hybrid tandem module is proposed and used to show how the efficiency of an interdigitated back contact (IBC) c-Si module with an efficiency of about 19.5% can significantly be increased through this 4-terminal tandem concept. In our model we also included the change in electrical output parameters by the color-filtering effect of the top cells.

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