Title :
Behaviour of Nb2O5/PPy contacts: From Schottky barriers to p-n junctions
Author :
Figà, Viviana ; Di Quarto, Francesco
Author_Institution :
Lab. des Proprietes Opt. des Mater. et Applic., Univ. d´´Angers, Angers, France
Abstract :
In this work, a study of the photoelectrochemical responses of Nb2O5/PPy contacts fabricated in both organic and aqueous solutions is performed. From the comparison between the experimental data of PPy photodeposited on Nb2O5 in organic and in aqueous solutions, it is evident that the medium used for the photodeposition influences the absorption coefficient, the band gap and flat band potential values.
Keywords :
Schottky barriers; absorption coefficients; composite materials; conducting polymers; electrodeposition; electrodeposits; electrolytic polishing; energy gap; interface states; niobium compounds; p-n heterojunctions; photoconductivity; photoelectrochemistry; thin films; Schottky barriers; absorption coefficient; anodization; aqueous solutions; band gap; band potential; conjugated polymers; electropolishing; heterojunctions; photocurrent spectroscopy; photodeposition; photoelectrochemical responses; polymerization; polypyrrole; Electrodes; Equations; Niobium; Organic materials; P-n junctions; Photoconductivity; Polymer films; Schottky barriers; Semiconductor films; Spectroscopy; Nb2O5 thin films; Polypyrrole; Schottky barriers; p-n junctions;
Conference_Titel :
ICTON Mediterranean Winter Conference,2009. ICTON-MW 2009. 3rd
Conference_Location :
Angers
Print_ISBN :
978-1-4244-5745-8
Electronic_ISBN :
978-1-4244-5746-5
DOI :
10.1109/ICTONMW.2009.5385548
