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Titel:
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Selective emitter in n-type c-Si solar cells
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Auteur(s):
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Liu, J.; Janssen, G.J.M.; Koppes, M.; Kossen, E.J.; Komatsu, Y.; Anker, J.; Gutjahr, A.; Vlooswijk, A.H.G.; Luchies, J.M.; Siarheyeva, O.; Granneman, E.; Romijn, I.G.
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Gepubliceerd door:
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Publicatie datum:
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ECN
Zonne-energie
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14-9-2015
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ECN publicatienummer:
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Publicatie type:
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ECN-M--15-011
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Conferentiebijdrage
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Aantal pagina's:
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Volledige tekst:
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4
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Download PDF
(377kB)
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Samenvatting:
A selective emitter is expected to have a better blue response, less Auger recombination, less contact recombination and lower contact resistivity in industrially processed n-type solar cells. In this work, we present a controllable process to make a selective emitter by applying a printable resist on the emitter as a mask. In the subsequent etch process the p+ emitter can be selectively etched to optimize the passivation and conductivity. IV measurements from a batch of solar cells are presented to demonstrate the improvements on Voc and Isc. The mean efficiency of the SE cells is increased by 0.24% absolute compared to the standard homogeneous emitter cells resulting in a highest efficiency of 20.7%.
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