J. I. Clavijo and E. Romero, “Efecto de Algunos Parámetros Experimentales Sobre las Propiedades ópticas y Morfológicas de Silicio Poroso Obtenido por Anodización de Silicio Tipo p,” Trabajo de Grado, Universidad Nacional de Colombia, Bogotá DC, 2004.

has been cited by the following article:

• TITLE: Temporal Evolution of Anodization Current of Porous Silicon Samples

  AUTHORS: Adriana Gutiérrez, Jairo Giraldo, Mario Enrique Rodríguez-García

  KEYWORDS: Porous Silicon; Electrochemical Etching; Anodization Current

  JOURNAL NAME: Materials Sciences and Applications, Vol.4 No.8A, August 14, 2013

  ABSTRACT: Temporal evolution of the anodization current of porous silicon samples was studied by means of a model of resistances connected in series that represented the temporal changes of the substrate and of the interface between the substrate and the electrolyte during the porous sample formation process. The porous samples were obtained by means of photoelectrochemical etching of (100) n-type silicon wafers with different resistivity values, all in the range of 1 - 25 Wcm. The samples were formed at room temperature in an electrolytic bath composed by a mixture of hydrofluoric acid (48%) and ethanol having a composition ratio of 1:1 in volume under potentiostatic condition (10 V and 20 V) and an etching time of 2 minutes using back illumination provided by a laser beam with a wavelength of 808 nm.