Photoelectrochemical Polymerization of Thiophene on Self-Assembled RuL2(NCS)2/Di(3-Aminopropyl)Viologen on Indium Thin Oxide

Title
Photoelectrochemical Polymerization of Thiophene on Self-Assembled RuL2(NCS)2/Di(3-Aminopropyl)Viologen on Indium Thin Oxide
Authors
이원주형경희황윤희조병원이수형한성환
Keywords
Photoelectrochemical Polymerization; Self-Assembled Monolayers; Photoelectrochemical Cells; Polythiophene; Photoinduced Charge Transfer
Issue Date
2011-05
Publisher
Journal of nanoscience and nanotechnology
Citation
VOL 11, NO 5, 4501-4505
Abstract
Polythiophene layers were formed on self-assembled monolayers (SAMs)/indium tin oxide (ITO) using photoelectrochemical polymerization. The SAMs on ITO was prepared using Ru(4,4'- dicarboxylic acid-2,2'-bipyridine)2(NCS)2 and di(3-aminopropyl)viologen. The photoelectrochemically polymerized polythiophene layers on SAMs/ITO were characterized using UV-vis. absorption spectroscopy, atomic force microscopy, scanning electron microscopy, and cyclic voltammetry. The polymer layers have thickness of ~360 nm, a dense surface morphology, optical gap of 2.38 eV, highest occupied molecular orbital of −5.2 eV and lowest unoccupied molecular orbital of −2.82 eV. In photoelectrochemical cells, the polythiophene on SAMs/ITO electrode showed a photocurrent of 5 μA/㎠.
URI
http://pubs.kist.re.kr/handle/201004/40056
ISSN
1533-4880
Appears in Collections:
KIST Publication > Article
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