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Träfflista för sökning "WFRF:(Mårtensson J) srt2:(2000-2004)"

Search: WFRF:(Mårtensson J) > (2000-2004)

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  • Schnadt, J, et al. (author)
  • Excited-state charge transfer dynamics in systems of aromatic adsorbates on TiO2 studied with resonant core techniques
  • 2003
  • In: Journal of Chemical Physics. - : AIP Publishing. - 0021-9606 .- 1089-7690. ; 119:23, s. 12462-12472
  • Journal article (peer-reviewed)abstract
    • Resonant core spectroscopies are applied to a study of the excited electron transfer dynamics on a low-femtosecond time scale in systems of aromatic molecules (isonicotinic acid and bi-isonicotinic acid) adsorbed on a rutile TiO2(110) semiconductor surface. Depending on which adsorbate state is excited, the electron is either localized on the adsorbate in an excitonic effect, or delocalizes rapidly into the substrate in less than 5 fs (3 fs) for isonicotinic acid (bi-isonicotinic acid). The results are obtained by the application of a variant of resonant photoemission spectroscopy. (C) 2003 American Institute of Physics.
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  • Schnadt, Joachim, et al. (author)
  • Structural study of adsorption of isonicotinic acid and related molecules on rutile TiO2(110) I: XAS and STM
  • 2003
  • In: Surface Science. - 0039-6028. ; 540:1, s. 39-54
  • Journal article (peer-reviewed)abstract
    • X-ray absorption spectroscopy (XAS) and scanning tunneling microscopy (STM) have been used to study the absorption of monolayers of the pyridinecarboxylic acid monomers (isonicotinic acid, nicotinic acid, and picolinic acid) and benzoic acid on a rutile TiO2(1 1 0) surface. We find that the pyridine and phenyl rings are oriented with their planes largely perpendicular to the surface. The azimuthal orientations are strongly influenced by adsorbate-adsorbate interactions, which in each case leads to at least two different molecular species. In order to reach this conclusion a detailed strategy has been developed for the interpretation of angle-dependent XAS data, which does not rely on any curve fitting procedures. (C) 2003 Elsevier B.V. All rights reserved.
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  • Schiessling, J, et al. (author)
  • Insulating surface layer on single crystal K3C60
  • 2004
  • In: European Physical Journal B. Condensed Matter and Complex Systems. - : Springer Science and Business Media LLC. - 1434-6028. ; 41:4, s. 435-438
  • Journal article (peer-reviewed)abstract
    • Using angle-dependent photoemission spectra of core and valence levels we show that metallic, single crystal K3C60 is terminated by an insulating or weakly-conducting surface layer. We attribute this to the effects of strong intermolecular correlations combined with the average surface charge state. Several controversies on the electronic structure are thereby resolved.
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  • Result 1-10 of 36

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