INVESTIGADORES
SCHMIDT javier Alejandro
congresos y reuniones científicas
Título:
SOLID PHASE EPITAXY ON LARGE GRAINED POLYCRYSTALLINE SEED LAYERS
Autor/es:
BUITRAGO, R. H.; SCHMIDT, J. A.; BUDINI, N.; RISSO, G.; RINALDI, P.; BENVENUTO, A. G.; ARCE, R. D.
Lugar:
Hamburgo, Alemania
Reunión:
Conferencia; 24th European Photovoltaic Solar Energy Conference; 2009
Institución organizadora:
WIP-Renewable Energies
Resumen:
In this paper, we report preliminary results on the preparation of a polycrystalline silicon solar cell absorber layer by epitaxial thickening on a large grained seed layer. The latter is obtained from an amorphous silicon double layer p+/p- prepared by PECVD and crystallized by Nickel mediated crystallization. Before the deposition of the p- absorber layer the Ni precipitated at the grain boundaries of the p+/p- layer has to be removed. Epitaxial growth is observed keeping the same plane orientation as the seed layer. Polycrystalline silicon thin films with grain size larger than 100 microns can be obtained by this procedure.