Electrochemical characterization of semiconductor photovoltaic silicon

Abstract

The objective of this search is the use of the electrochemical techniques to verify the homogeneous of the photovoltaic silicon elaborated by electromagnetic brewing at 250 A. The used electrolytic medium are 3,5% NaCl and acidified 3,5% NaCl (pH 3). The results obtained from several techniques (Open circuit potential, Tafel curves, chronopotentiommetry and electrochemical impedance spectrometry), indicate the existence of a heterogeneousness structure in the silicon ingot.