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

fYear

2009

fDate

10-12 Dec. 2009

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICTONMW.2009.5385548

Filename

5385548