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 edgeX-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 associatedto molecular fragmentation. NEXAFS confirms that fragmentation takes place at the surface. Thiophene species as well as alkyl chains and Sn species are identified as the most probable fragmentation products.

Adsorption of 3,4-ethylenedioxythiophene (EDOT) on noble metal surfaces: a photoemission and x-ray absorption study / Pasquali, Luca; Terzi, Fabio; Montecchi, Monica; B., Doyle; J., Lukkari; Zanfrognini, Barbara; Seeber, Renato; Nannarone, Stefano. - In: JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA. - ISSN 0368-2048. - STAMPA. - 172:1-3(2009), pp. 114-119. [10.1016/j.elspec.2009.03.014]

Adsorption of 3,4-ethylenedioxythiophene (EDOT) on noble metal surfaces: a photoemission and x-ray absorption study

PASQUALI, Luca;TERZI, Fabio;MONTECCHI, Monica;ZANFROGNINI, Barbara;SEEBER, Renato;NANNARONE, Stefano
2009-01-01

Abstract

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 edgeX-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 associatedto molecular fragmentation. NEXAFS confirms that fragmentation takes place at the surface. Thiophene species as well as alkyl chains and Sn species are identified as the most probable fragmentation products.
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Adsorption of 3,4-ethylenedioxythiophene (EDOT) on noble metal surfaces: a photoemission and x-ray absorption study / Pasquali, Luca; Terzi, Fabio; Montecchi, Monica; B., Doyle; J., Lukkari; Zanfrognini, Barbara; Seeber, Renato; Nannarone, Stefano. - In: JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA. - ISSN 0368-2048. - STAMPA. - 172:1-3(2009), pp. 114-119. [10.1016/j.elspec.2009.03.014]
Pasquali, Luca; Terzi, Fabio; Montecchi, Monica; B., Doyle; J., Lukkari; Zanfrognini, Barbara; Seeber, Renato; Nannarone, Stefano
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/621495
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