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PTCDA induced recon...
PTCDA induced reconstruction on Sn/Si(111)-2√3×2√3
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- Zhang, Hanmin, 1966- (författare)
- Karlstads universitet,Avdelningen för fysik och elektroteknik,Materialfysik
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- Ericsson, Leif, 1964- (författare)
- Karlstads universitet,Avdelningen för fysik och elektroteknik,Materialfysik
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- Johansson, Lars, 1956- (författare)
- Karlstads universitet,Avdelningen för fysik och elektroteknik,Materialfysik
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(creator_code:org_t)
- New York : American Physical Society, 2012
- 2012
- Engelska.
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Ingår i: Physical Review B. Condensed Matter and Materials Physics. - New York : American Physical Society. - 1098-0121 .- 1550-235X. ; 85:24, s. 245317-1-245317-5
- Relaterad länk:
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http://link.aps.org/...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- The electronic structures of the Sn/Si(111)-2√3×2√3 surface and deposited 3,4,9,10-perylene tetracarboxylic dianhydride (PTCDA) have been studied by use of high-resolution photoelectron spectroscopy and scanning tunneling microscopy. On deposition, PTCDA molecules form a 4√3×2√3 periodicity superposed on the substrate. The new reconstruction is caused by a charge transfer between the Sn/Si(111)-2√3×2√3 surface and the molecules, as indicated by a new component of the Sn 4d core level that is shifted toward higher binding energy. In contrast to earlier reports, the charge provided by Sn is given to carbonyl C atoms instead of O atoms. This is evidenced by a new component in the C 1s core-level spectra, which is shifted toward lower binding energy. The charge transfer also induces a splitting in the highest occupied molecular orbital level of PTCDA seen in the valence band structure.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- Physics
- Fysik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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