Light induced electropolymerization of poly(3,4-ethylenedioxythiophene) on niobium oxide

The photoelectrochemical polymerization of poly(3,4-ethylenedioxythiophene), PEDOT, was successfully realized on anodic film grown to 50 V on magnetron sputtered niobium. Photocurrent Spectroscopy was employed to study the optical properties of Nb/Nb 2O 5/PEDOT/electrolyte interface in a large range...

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Bibliographic Details
Published in:Electrochimica acta 2010-12, Vol.56 (2), p.737-744
Main Authors: Di Franco, F., Bocchetta, P., Santamaria, M., Di Quarto, F.
Format: Article
Language:English
Subjects:
Anodic
Applied sciences
Band gap
Band spectra
Chemistry
Conducting polymers
Electrochemistry
Electrolytes
Exact sciences and technology
General and physical chemistry
Niobium
Niobium oxide
Optical properties
Oxides
PEDOT
Photocurrent
Photoelectrochemistry
Photoelectrochemistry. Electrochemiluminescence
Physicochemistry of polymers
Polymerization
Polymers and radiations
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Summary:The photoelectrochemical polymerization of poly(3,4-ethylenedioxythiophene), PEDOT, was successfully realized on anodic film grown to 50 V on magnetron sputtered niobium. Photocurrent Spectroscopy was employed to study the optical properties of Nb/Nb 2O 5/PEDOT/electrolyte interface in a large range of potential, and to get an estimate of the band gap and flat band potential of both the oxide and the polymer. Scanning Electron Microscopy was used to study the morphology of PEDOT. Both the optical and morphological features of the photoelectrochemically grown polymer were compared with those showed by PEDOT electropolymerized on gold conducting substrate.
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2010.09.062