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Electronic structure of highly ordered films of self-assembled graphitic nanocolumns
Linköping University, Department of Physics, Chemistry and Biology. Linköping University, The Institute of Technology.
Linköping University, Department of Physics, Chemistry and Biology. Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.ORCID iD: 0000-0001-8845-6296
Max Planck Institute for Polymer Research, Germany.
Max Planck Institute for Polymer Research, Germany.
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2003 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 68, no 19, 195414- p.Article in journal (Refereed) Published
Abstract [en]

Highly ordered, several nanometers thick films of alkylated large planar, polycyclic aromatic hydrocarbon (PAH) molecules have been grown on semi-metallic molybdenum disulfide substrates. The films are characterized by a two-dimensional lateral arrangement of columns standing at the surface on a macroscopic scale. The self-assembly of such insulated columns of face-to-face disks with surface-induced vertical alignment has been achieved directly from solution processing. Angle-resolved photoelectron spectra revealed a highly anisotropic quasi-one-dimensional electronic structure with an extended π-electronic wave function. An intermolecular dispersion of the highest occupied band of at least 0.15 eV along the stacking direction has been measured. A partial breakdown of the concept of quasimomentum due to the finite size of the nano-objects perpendicular to the stacks is observed.

Place, publisher, year, edition, pages
2003. Vol. 68, no 19, 195414- p.
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Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-47736DOI: 10.1103/PhysRevB.68.195414OAI: oai:DiVA.org:liu-47736DiVA: diva2:268632
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2013-09-12

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Friedlein, RainerCrispin, XavierOsikowicz, Wojciechde Jong, Michel PJönsson, StinaFahlman, MatsSalaneck, William R

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Friedlein, RainerCrispin, XavierOsikowicz, Wojciechde Jong, Michel PJönsson, StinaFahlman, MatsSalaneck, William R
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Department of Physics, Chemistry and BiologyThe Institute of TechnologyDepartment of Science and TechnologySurface Physics and Chemistry
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Physical Review B. Condensed Matter and Materials Physics
Engineering and Technology

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