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  Electronic structure of highly ordered films of self-assembled graphitic nanocolumns

Friedlein, R., Crispin, X., Simpson, C. D., Watson, M. D., Jäckel, F., Osikowicz, W., et al. (2003). Electronic structure of highly ordered films of self-assembled graphitic nanocolumns. Physical Review B, 68(19): 195414.

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 Creators:
Friedlein, R., Author
Crispin, X., Author
Simpson, C. D.1, Author           
Watson, Mark D.1, Author           
Jäckel, F., Author
Osikowicz, W., Author
Marciniak, S., Author
de Jong, M. P., Author
Samori, P., Author
Jönsson, S. K. M., Author
Fahlman, M., Author
Müllen, Klaus1, Author           
Rabe, J. P., Author
Salaneck, W. R., Author
Affiliations:
1MPI for Polymer Research, Max Planck Society, ou_1309545              

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 Abstract: 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.

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Language(s): eng - English
 Dates: 2003
 Publication Status: Issued
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 60321
Other: P-03-163
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Title: Physical Review B
  Alternative Title : Phys. Rev. B
Source Genre: Journal
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Pages: - Volume / Issue: 68 (19) Sequence Number: 195414 Start / End Page: - Identifier: -