A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Adsorption of 3,4-ethylenedioxythiophene (EDOT) on noble metal surfaces: A photoemission and X-ray absorption study
Tekijät: Pasquali L, Terzi F, Montecchi M, Doyle BP, Lukkari J, Zanfrognini B, Seeber R, Nannarone S
Kustantaja: ELSEVIER SCIENCE BV
Julkaisuvuosi: 2009
Lehti: Journal of Electron Spectroscopy and Related Phenomena
Tietokannassa oleva lehden nimi: JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA
Lehden akronyymi: J ELECTRON SPECTROSC
Vuosikerta: 172
Numero: 1-3
Aloitussivu: 114
Lopetussivu: 119
Sivujen määrä: 6
ISSN: 0368-2048
DOI: https://doi.org/10.1016/j.elspec.2009.03.014
Tiivistelmä
The adsorption of 3,4-ethylenedioxythiophene (EDOT) on Au and Pt surfaces is studied by core level and valence band photoemission using synchrotron radiation and by near edge X-ray absorption spectroscopy. To closer simulate real applications, the films are grown from aqueous solution at room temperature and are compared to an 'ideal' film prepared by dosing the molecules from the vapour phase on a clean Au(1 1 1) single crystal. The S 2p. C 1s and O 1s levels show multiple components which are associated to molecular fragmentation. NEXAFS confirms that fragmentation takes place at the surface. Thiophene species as well as alkyl chains and S(n) species are identified as the most probable fragmentation products. (C) 2009 Elsevier B.V. All rights reserved.
The adsorption of 3,4-ethylenedioxythiophene (EDOT) on Au and Pt surfaces is studied by core level and valence band photoemission using synchrotron radiation and by near edge X-ray absorption spectroscopy. To closer simulate real applications, the films are grown from aqueous solution at room temperature and are compared to an 'ideal' film prepared by dosing the molecules from the vapour phase on a clean Au(1 1 1) single crystal. The S 2p. C 1s and O 1s levels show multiple components which are associated to molecular fragmentation. NEXAFS confirms that fragmentation takes place at the surface. Thiophene species as well as alkyl chains and S(n) species are identified as the most probable fragmentation products. (C) 2009 Elsevier B.V. All rights reserved.
Turun yliopiston Tutkimustietojärjestelmän portaali