000819720 001__ 819720
000819720 005__ 20210301095425.0
000819720 0247_ $$2Handle$$a2128/12520
000819720 0247_ $$2ISSN$$a1866-1807
000819720 020__ $$a978-89336-816-7
000819720 037__ $$aFZJ-2016-05321
000819720 041__ $$aEnglish
000819720 1001_ $$0P:(DE-Juel1)128781$$aMercurio, Giuseppe$$b0$$eCorresponding author$$gmale$$ufzj
000819720 245__ $$aStudy of Molecule-Metal Interfaces by Means of the Normal Incidence X-ray Standing Wave Technique$$f2012-12-31 - 2012-12-31
000819720 260__ $$aJülich$$bForschungszentrum Jülich GmbH Zentralbibliothek, Verlag$$c2012
000819720 300__ $$aXXII, 361 S.
000819720 3367_ $$2DataCite$$aOutput Types/Dissertation
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000819720 3367_ $$02$$2EndNote$$aThesis
000819720 3367_ $$0PUB:(DE-HGF)11$$2PUB:(DE-HGF)$$aDissertation / PhD Thesis$$bphd$$mphd$$s1476350167_31315
000819720 3367_ $$2DRIVER$$adoctoralThesis
000819720 4900_ $$aSchriften des Forschungszentrum Jülich. Reihe Schlüsseltechnologien/ Key Technologies$$v49
000819720 502__ $$aRWTH Aachen, Diss., 2012$$bDr.$$cRWTH Aachen$$d2012
000819720 520__ $$aThis work investigates the geometric and chemical properties of different moleculemetal interfaces, relevant to molecular electronics and functional surfaces applications, by means of the normal incidence x-ray standing wave (NIXSW) technique. All NIXSW data are analysed by means of the newly developed open-source program Torricelli, which is thoroughly documented in the thesis. In order to elucidate the role played by the substrate within molecule-metal interfaces, the prototype organic molecule 3,4,9,10-perylene-tetracarboxylic-dianhydride (PTCDA) on the Ag(110) surface is investigated. The molecule results more distorted and at smaller bonding distances on the more reactive Ag(110) surface, in comparison with the Ag(100)$^{1}$ and the Ag(111)$^{2}$ substrates. This conclusion follows from the detailed molecular adsorption geometry obtained from the differential analysis of both carbon and oxygen atoms. Subsequently, the chemisorptive PTCDA/Ag(110) interaction is tuned by the codeposition of an external alkali metal, namely K. As a consequence, the functional groups of PTCDA unbind from the surface, which, in turn, undergoes major reconstruction. In fact, the resulting nanopatterned surface consists of alternated up and down reconstructed Ag terraces covered by PTCDA molecules partly unbound with respect to the pure molecular phase. Within the context of the functional surfaces, the interaction of the molecular switches azobenzene (AB) and 3,3,5,5-tetra-tert-butyl-azobenzene (TBA) adsorbed on the Ag(111) surface is investigated. The bonding distance of TBA, only slightly greater compared to AB, indicates that the desired geometric decoupling of the photochromic moiety to enable the switching in the adsorbate state does not occur.$^{3}$ In [...]
000819720 536__ $$0G:(DE-HGF)POF3-142$$a142 - Controlling Spin-Based Phenomena (POF3-142)$$cPOF3-142$$fPOF III$$x0
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