uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
InSb-TiOPc interfaces: Band alignment, ordering and structure dependent HOMO splitting
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
Show others and affiliations
2009 (English)In: Surface Science, ISSN 0039-6028, E-ISSN 1879-2758, Vol. 603, no 20, 3160-3169 p.Article in journal (Refereed) Published
Abstract [en]

Thin films of titanyl phthalocyanine (TiOPc) have been adsorbed on InSb(1 1 1) (3 x 3) and InSb(1 0 0) c(8 x 2) surfaces and studied with respect to their electronic structure using photoemission (PES), density functional theory (DFT) and scanning tunneling microscopy (STM). The interface chemical interaction is weak in both cases; no adsorbate induced surface band bending is observed and the energy level alignment across the interface is determined by the original position of the substrate Fermi level and the charge neutrality level of the molecule. Room temperature adsorption results in disordered films on both surfaces. The behaviors after annealing are different; on InSb(1 0 0) well-ordered molecular chains form along and on top of the In-rows, whereas on (1 1 1) no long range order is observed. The disorder leads to intermolecular interactions between the titanyl group and neighboring benzene rings leading to a split of TiOPc HOMO (highest occupied molecular orbital) by as much as 0.8 eV. (C) 2009 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
2009. Vol. 603, no 20, 3160-3169 p.
Keyword [en]
InSb, Phthalocyanine, Organic-inorganic semiconductor interface, Scanning tunneling microscopy, Photoelectron spectroscopy
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:uu:diva-127448DOI: 10.1016/j.susc.2009.09.001ISI: 000271179600019OAI: oai:DiVA.org:uu-127448DiVA: diva2:330068
Available from: 2010-07-14 Created: 2010-07-13 Last updated: 2012-04-02

Open Access in DiVA

No full text

Other links

Publisher's full text

Authority records BETA

Brena, BarbaraHennies, F

Search in DiVA

By author/editor
Brena, BarbaraHennies, F
By organisation
Department of Physics and Astronomy
In the same journal
Surface Science
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 366 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf