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

L. Pasquali; F. Terzi; M. Montecchi; B. P. Doyle; J. Lukkari; B. Zanfrognini; R. Seeber; S. Nannarone

doi:10.1016/j.elspec.2009.03.014

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

L. Pasquali, F. Terzi, M. Montecchi, B. P. Doyle, J. Lukkari, B. Zanfrognini, R. Seeber, S. Nannarone

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

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 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.

Original language	English
Pages (from-to)	114-119
Number of pages	6
Journal	Journal of Electron Spectroscopy and Related Phenomena
Volume	172
Issue number	1-3
DOIs	https://doi.org/10.1016/j.elspec.2009.03.014
Publication status	Published - May 2009
Externally published	Yes

Keywords

NEXAFS
Self-assembled monolayers
Thiophene derivatives
XPS

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Radiation
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Spectroscopy
Physical and Theoretical Chemistry

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10.1016/j.elspec.2009.03.014

Cite this

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title = "Adsorption of 3,4-ethylenedioxythiophene (EDOT) on noble metal surfaces: A photoemission and X-ray absorption study",

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 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 Sn species are identified as the most probable fragmentation products.",

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author = "L. Pasquali and F. Terzi and M. Montecchi and Doyle, {B. P.} and J. Lukkari and B. Zanfrognini and R. Seeber and S. Nannarone",

year = "2009",

month = may,

doi = "10.1016/j.elspec.2009.03.014",

language = "English",

volume = "172",

pages = "114--119",

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T2 - A photoemission and X-ray absorption study

AU - Pasquali, L.

AU - Terzi, F.

AU - Montecchi, M.

AU - Doyle, B. P.

AU - Lukkari, J.

AU - Zanfrognini, B.

AU - Seeber, R.

AU - Nannarone, S.

PY - 2009/5

Y1 - 2009/5

N2 - 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 Sn species are identified as the most probable fragmentation products.

AB - 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 Sn species are identified as the most probable fragmentation products.

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KW - Self-assembled monolayers

KW - Thiophene derivatives

KW - XPS

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

Abstract

Keywords

ASJC Scopus subject areas

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