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ECN publicatie:
Titel:
Multi-junction polymer solar cells
 
Auteur(s):
 
Gepubliceerd door: Publicatie datum:
ECN Zonne-energie 4-2-2008
 
ECN publicatienummer: Publicatie type:
ECN-M--08-020 Conferentiebijdrage
 
Aantal pagina's: Volledige tekst:
7 Download PDF  (1733kB)

Gepresenteerd op: 23rd European Photovoltaic Solar Energy Conference and Exhibition, Valencia, Spain, 1-5 september 2008.

Samenvatting:
We discuss the materials challenges for increasing cell efficiencies of polymer solar cells via the route of stacking several cells on top of each other in multi-junction solar cells. For such cells, the recombination layer between the two sub cells is crucial. Typically, the recombination layer consists of a semi-transparent n- and p-type semiconductor bilayer. Several options for the recombination layer will be discussed. Furthermore, we discuss how the workfunction and the conductivity of the semi-transparent semiconductors may influence the performance of the cells. We also discuss requirements for accurate measurements of spectral response and efficiency. Keywords: tandem, polymer film, multi-junction solar cell


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