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ECN publicatie:
Titel:
Higher efficiency for thin multi crystalline silicon solar cells by improving the rear surface passivation
 
Auteur(s):
Tool, C.J.J.; Burgers, A.R.; Manshanden, P.; Weeber, A.W.
 
Gepubliceerd door: Publicatie datum:
ECN Zonne-energie 1-5-2002
 
ECN publicatienummer: Publicatie type:
ECN-RX--02-022 Conferentiebijdrage
 
Aantal pagina's: Volledige tekst:
4 Download PDF  (55kB)

Gepresenteerd op: 29th IEEE Photovoltaic Specialists Conference, New Orleans, USA, 20-24 mei 2002.

Samenvatting:
For wafers thicker than 200 urn, the efficiency of industrial multicrystalline silicon solar cells is independent of wafer thickness. An important efficiency limitation of these thin solar cells is the poor rear surface passivation due to the short minority carrier diffusion length of the aluminium BSF. The most likely reason for the poor quality of the BSF is the poor crystallinity of the BSF due to fast cooling of the cells during metallisation firing. Possible solutions to overcome this limitation are presented.


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