INVESTIGADORES
TAMASI Mariana Julia Luisa
artículos
Título:
Optimisation of ITO layers for heterojunction a-Si/c-Si solar cell applications
Autor/es:
J. C. PLÁ; M. J. L. TAMASI; R. RIZZOLI; M. LOSURDO; E. CENTURIONI; C. SUMMONTE; F. RUBINELLI
Revista:
THIN SOLID FILMS
Editorial:
Elsevier Science
Referencias:
Lugar: Amsterdam, Holanda; Año: 2003 vol. 425 p. 185 - 192
ISSN:
0040-6090
Resumen:
A
detailed study of the antireflecting properties of Indium Tin Oxide (ITO) thin films used as
front electrodes in a-Si/c-Si heterojunction (HJ) solar cells is presented.
Radiofrequency magnetron sputtering deposition conditions of ITO layers were
optimized for HJ solar cells applications. An XPS analysis was performed on the
deposited films and a correlation between the film composition and the
experimental parameters used in the sputtering process was established. The ITO
layer thickness was optimised considering the a-Si layer thickness, its optical
characteristics and the HJ solar cell spectral response. In our devices, the
optimal ITO film thickness was established to be in the range 80 - 90 nm
depending on the solar cell spectral response. A thickness tolerance of ± 10 nm
was found to be suitable by accepting a minor degradation of the device
performance. Finally, device simulation results obtained by the AMPS code are
reported.