Artigo Revisado por pares

Mixed-phase p-type silicon oxide containing silicon nanocrystals and its role in thin-film silicon solar cells

2010; American Institute of Physics; Volume: 97; Issue: 21 Linguagem: Inglês

10.1063/1.3517492

ISSN

1520-8842

Autores

Peter Cuony, Michael Marending, Duncan T. L. Alexander, Mathieu Boccard, G. Bugnon, Matthieu Despeisse, Christophe Ballif,

Tópico(s)

Silicon and Solar Cell Technologies

Resumo

Lower absorption, lower refractive index, and tunable resistance are three advantages of amorphous silicon oxide containing nanocrystalline silicon grains (nc-SiOx) compared to microcrystalline silicon (μc-Si), when used as a p-type layer in μc-Si thin-film solar cells. We show that p-nc-SiOx with its particular nanostructure increases μc-Si cell efficiency by reducing reflection and parasitic absorption losses depending on the roughness of the front electrode. Furthermore, we demonstrate that the p-nc-SiOx reduces the detrimental effects of the roughness on the electrical characteristics, and significantly increases μc-Si and Micromorph cell efficiency on substrates until now considered too rough for thin-film silicon solar cells.

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