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Enhanced electroactivity and electrochromism in PEDOT nanowires

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Duvail, J. L. Long, Y. Retho, P. Louarn, G. De Pra, L. Dauginet [UCL] Demoustier-Champagne, Sophie [UCL]

Here, we report on an in situ study of the spectroelectrochemical behavior of template prepared poly(3,4-ethylenedioxythiophene) (PEDOT) nanowires by UV-Vis-NIR spectroscopy. A comparative analysis between spectra measured on a PEDOT thin film and on nanowires (diameter: 80 rims 30 nm) has been made. It gives evidence for - enhanced bipolaronic band in the oxidized state, and - more efficient dedoping in the reduced state, for the 30-nm nanowires. This result, analyzed in terms of higher (de)doping level during the redox process for the smaller diameter, demonstrates improved electroactivity and electrochromism, as required for sensors.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès restreint
Publication date 2008
Language Anglais
Journal information "Molecular Crystals and Liquid Crystals" - Vol. 485, p. 835-842 (2008)
Peer reviewed yes
Publisher Taylor & Francis Ltd (Abingdon)
issn 1542-1406
e-issn 1543-5318
Publication status Publié
Affiliation UCL - Autre
Keywords Electrochromism ; Nanowire
Links
  1. Granstrom M., Berggren M., Inganas O., Micrometer- and Nanometer-Sized Polymeric Light-Emitting Diodes, 10.1126/science.267.5203.1479
  2. Kim B. H., Kim M. S., Park K. T., Lee J. K., Park D. H., Joo J., Yu S. G., Lee S. H., Characteristics and field emission of conducting poly (3,4-ethylenedioxythiophene) nanowires, 10.1063/1.1592004
  3. Cho S. I., Kwon W. J., Choi S.-J., Kim P., Park S.-A., Kim J., Son S. J., Xiao R., Kim S.-H., Lee S. B., Nanotube-Based Ultrafast Electrochromic Display, 10.1002/adma.200400499
  4. Huang Jiaxing, Virji Shabnam, Weiller Bruce H., Kaner Richard B., Polyaniline Nanofibers:  Facile Synthesis and Chemical Sensors, 10.1021/ja028371y
  5. Dauginet-De Pra Laurence, Ferain Etienne, Legras Roger, Demoustier-Champagne Sophie, Fabrication of a new generation of track-etched templates and their use for the synthesis of metallic and organic nanostructures, 10.1016/s0168-583x(02)01252-1
  6. Sakmeche Nacer, Aeiyach Salah, Aaron Jean-Jacques, Jouini Mohamed, Lacroix Jean Christophe, Lacaze Pierre-Camille, Improvement of the Electrosynthesis and Physicochemical Properties of Poly(3,4-ethylenedioxythiophene) Using a Sodium Dodecyl Sulfate Micellar Aqueous Medium, 10.1021/la980909j
  7. Duvail J.L., Rétho P., Garreau S., Louarn G., Godon C., Demoustier-Champagne S., Transport and vibrational properties of poly(3,4-ethylenedioxythiophene) nanofibers, 10.1016/s0379-6779(02)00195-9
  8. Duvail J. L., Rétho P., Fernandez V., Louarn G., Molinié P., Chauvet O., Effects of the Confined Synthesis on Conjugated Polymer Transport Properties, 10.1021/jp046834b
  9. Duvail Jean Luc, Long Yunze, Cuenot Stéphane, Chen Zhaojia, Gu Changzhi, Tuning electrical properties of conjugated polymer nanowires with the diameter, 10.1063/1.2711527
  10. Kvarnström C., Neugebauer H., Blomquist S., Ahonen H.J., Kankare J., Ivaska A., In situ spectroelectrochemical characterization of poly(3,4-ethylenedioxythiophene), 10.1016/s0013-4686(98)00405-8
  11. Dauginet-De Pra L., Demoustier-Champagne S., Investigation of the electronic structure and spectroelectrochemical properties of conductive polymer nanotube arrays, 10.1016/j.polymer.2004.12.016
  12. Saunders Brian R., Fleming Robert J., Murray Keith S., Recent Advances in the Physical and Spectroscopic Properties of Polypyrrole Films, Particularly Those Containing Transition-Metal Complexes as Counteranions, 10.1021/cm00054a007
  13. Pei Qibing, Zuccarello Guido, Ahlskog Markus, Inganäs Olle, Electrochromic and highly stable poly(3,4-ethylenedioxythiophene) switches between opaque blue-black and transparent sky blue, 10.1016/0032-3861(94)90332-8
  14. Chung T.-C., Kaufman J. H., Heeger A. J., Wudl F., Charge storage in doped poly(thiophene): Optical and electrochemical studies, 10.1103/physrevb.30.702
  15. Fichou Denis, Horowitz Gilles, Xu Bai, Garnier Francis, Low temperature optical absorption of polycrystalline thin films of α-quaterthiophene, α-sexithiophene and α-octithiophene, three model oligomers of polythiophene, 10.1016/0379-6779(92)90059-r
  16. Demoustier-Champagne Sophie, Stavaux Pierre-Yves, Effect of Electrolyte Concentration and Nature on the Morphology and the Electrical Properties of Electropolymerized Polypyrrole Nanotubules, 10.1021/cm9807541
Bibliographic reference Duvail, J. L. ; Long, Y. ; Retho, P. ; Louarn, G. ; De Pra, L. Dauginet ; et. al. Enhanced electroactivity and electrochromism in PEDOT nanowires. In: Molecular Crystals and Liquid Crystals, Vol. 485, p. 835-842 (2008)
Permanent URL http://hdl.handle.net/2078.1/59239