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Growth and characterization of fullerene nanocrystals on NaCl/Au(111)


Rossel, F; Pivetta, M; Patthey, F; Cavar, E; Seitsonen, A P; Schneider, W-D (2011). Growth and characterization of fullerene nanocrystals on NaCl/Au(111). Physical Review. B, Condensed Matter and Materials Physics, 84(7):075426.

Abstract

The growth of fullerene nanocrystals, composed of only C(60), only C(70), or a mixture of both fullerenes, has been investigated by scanning tunneling microscopy (STM). The nanocrystals, formed on a NaCl ultrathin layer partially covering a Au(111) surface, have characteristic truncated-triangular or hexagonal shapes, with lateral size up to 100 nm and a typical height of two to four molecular layers. This growth mode differs considerably from the ones observed on metallic surfaces. STM images with bias-dependent submolecular resolution reveal the spatial distribution of the electronic density originating from the molecular orbitals. A comparison of the experimental results with first-principles density functional theory calculations allows us to unambiguously determine the orientation and the nature of individual fullerene molecules in the surface layer of the nanocrystals.

The growth of fullerene nanocrystals, composed of only C(60), only C(70), or a mixture of both fullerenes, has been investigated by scanning tunneling microscopy (STM). The nanocrystals, formed on a NaCl ultrathin layer partially covering a Au(111) surface, have characteristic truncated-triangular or hexagonal shapes, with lateral size up to 100 nm and a typical height of two to four molecular layers. This growth mode differs considerably from the ones observed on metallic surfaces. STM images with bias-dependent submolecular resolution reveal the spatial distribution of the electronic density originating from the molecular orbitals. A comparison of the experimental results with first-principles density functional theory calculations allows us to unambiguously determine the orientation and the nature of individual fullerene molecules in the surface layer of the nanocrystals.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
Dewey Decimal Classification:540 Chemistry
Language:English
Date:August 2011
Deposited On:03 Jan 2012 15:35
Last Modified:05 Apr 2016 15:08
Publisher:American Physical Society
ISSN:1098-0121
Publisher DOI:10.1103/PhysRevB.84.075426
Other Identification Number:ISI:000293555100019
Permanent URL: http://doi.org/10.5167/uzh-51643

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