INVESTIGADORES
SCHMIDT javier Alejandro
artículos
Título:
Role of hydrogen in the photoinduced evolution of porous silicon luminescence
Autor/es:
R. R. KOROPECKI; R. ARCE; C. SPIES; A. M. GENNARO; J. A. SCHMIDT
Revista:
PHYSICA STATUS SOLIDI (C)
Editorial:
WILEY-VCH Verlag
Referencias:
Lugar: Weinheim; Año: 2007 vol. 4 p. 2150 - 2154
ISSN:
1610-1634
Resumen:
Photo-induced post preparation evolution effects in porous silicon were studied by IR, EPR, photoluminescence, and hydrogen effusion spectroscopies. The results show that two independent mechanisms are present during the photo-induced evolution. We also show that hydrogen photo-effusion takes place, in agreement with our previously proposed model. Photo-effusion experiments performed in vacuum, combined with IR and photoluminescence spectroscopies allow to discriminate the competing mechanisms present in the evolution of the photoluminescence.
