Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/107151
Title: Optical Properties of Ultrathin Poly(3,4-ethylenedioxythiophene) Films at Several Doping Levels Studied by In Situ Electrochemical Surface Plasmon Resonance Spectroscopy
Authors: Baba, A.
Lübben, J.
Tamada, K. 
Knoll, W. 
Issue Date: 14-Oct-2003
Citation: Baba, A., Lübben, J., Tamada, K., Knoll, W. (2003-10-14). Optical Properties of Ultrathin Poly(3,4-ethylenedioxythiophene) Films at Several Doping Levels Studied by In Situ Electrochemical Surface Plasmon Resonance Spectroscopy. Langmuir 19 (21) : 9058-9064. ScholarBank@NUS Repository.
Abstract: In this paper, we report on in situ optical/electrochemical investigations using a combination of surface plasmon resonance spectroscopy and electrochemistry in order to determine the complex dielectric constants of poly(3,4-ethylenedioxythiophene) (PEDOT) thin films. The PEDOT films were deposited by in situ electropolymerization. The film thickness was monitored by a quartz crystal microbalance. In the electrochemical surface plasmon resonance (EC-SPR) measurements, three wavelengths corresponding to interband and intraband electronic transition regions were used in order to investigate electrochromic properties. The optical conductivity was also determined by EC-SPR measurement with a near-infrared laser wavelength which corresponds to the region outside the anomalous dispersion.
Source Title: Langmuir
URI: http://scholarbank.nus.edu.sg/handle/10635/107151
ISSN: 07437463
Appears in Collections:Staff Publications

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