INVESTIGADORES
ARCE roberto Delio
congresos y reuniones científicas
Título:
Current-Voltage characteristics in macroporous silicon/SiOx/SnO2:F
Autor/es:
F. GARCÉS; R. URTEAGA; L. N. ACQUAROLI; KOROPECKI, R. R.; R.D. ARCE
Lugar:
Málaga
Reunión:
Congreso; Porous Silicon Science Technology (PSST-2012); 2012
Resumen:
We study the electrical characteristics of Macroporous Silicon/Transparent Conductor Oxide junction obtained by the deposition of fluorine doped SnO2 onto macroporous silicon, using the spray pyrolysis technique. The Macroporous Silicon was prepared by the electrochemical anodization of a silicon wafer. The anodization conditions were chosen so as to produce pore sizes rangingin 0.9 to 1.2 μm diameter. The transport of charge carriers through the interface was studied by measuring the current-voltage curves in dark and under illumination. We analyzed the e↵ects of the illumination on the electrical properties of the junction. In order to explain these e↵ects we proposed a model of two opposing diodes, each one associated with an independent current source. Scanning electronic microscopy was performed to confirm the pore filling and surface coverage