期刊
SURFACE SCIENCE
卷 604, 期 19-20, 页码 1619-1622出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.susc.2010.06.004
关键词
Photoelectron spectroscopy; NEXAFS; Organic hetero-interface; PTCDA; Phthalocyanine; Valence regime; Intermolecular interaction
资金
- BESSY
- BMBF [05KS7FK2/05KS7WW1, 3SF0356B]
- DFG [GRK 1221]
Ultra-thin organic hetero-layers consisting of tin-phthalocyanine (SnPc) and 1,3,4,8-perylen-tetracarboxylicacid dianhydride (PTCDA) adsorbed on a Ag(111) surface are characterized with photoelectron spectroscopy (PES) and near edge X-ray absorption fine structure (NEXAFS) spectroscopy. If SnPc is deposited on the Ag(111) substrate, which is precovered with one monolayer of PTCDA, a well defined interface is formed with a closed SnPc wetting layer as can be derived from angle dependent core level and from valence photoelectron spectra. Moreover, X-ray absorption data show that the molecules are lying flat and that the bonding at the SnPc/PTCDA interface is weak. (C) 2010 Elsevier B.V. All rights reserved.
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