Memory effect in the deposition of C20 fullerenes on a diamond surface

Du, AJ, Pan, ZY, Ho, YK, Huang, Z and Zhang, ZX (2002) Memory effect in the deposition of C20 fullerenes on a diamond surface. Physical Review B, 66 3: 035405-1-035405-6. doi:10.1103/PhysRevB.66.035405

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Author Du, AJ
Pan, ZY
Ho, YK
Huang, Z
Zhang, ZX
Title Memory effect in the deposition of C20 fullerenes on a diamond surface
Formatted title
Memory effect in the deposition of C20 fullerenes on a diamond surface
Journal name Physical Review B   Check publisher's open access policy
ISSN 1098-0121
Publication date 2002-07-15
Year available 2002
Sub-type Article (original research)
DOI 10.1103/PhysRevB.66.035405
Open Access Status File (Publisher version)
Volume 66
Issue 3
Start page 035405-1
End page 035405-6
Total pages 6
Place of publication College Pk
Publisher American Physical Society
Language eng
Abstract In this paper, the deposition of C-20 fullerenes on a diamond (001)-(2x1) surface and the fabrication of C-20 thin film at 100 K were investigated by a molecular dynamics (MD) simulation using the many-body Brenner bond order potential. First, we found that the collision dynamic of a single C-20 fullerene on a diamond surface was strongly dependent on its impact energy. Within the energy range 10-45 eV, the C-20 fullerene chemisorbed on the surface retained its free cage structure. This is consistent with the experimental observation, where it was called the memory effect in "C-20-type" films [P. Melion , Int. J. Mod. B 9, 339 (1995); P. Milani , Cluster Beam Synthesis of Nanostructured Materials (Springer, Berlin, 1999)]. Next, more than one hundred C-20 (10-25 eV) were deposited one after the other onto the surface. The initial growth stage of C-20 thin film was observed to be in the three-dimensional island mode. The randomly deposited C-20 fullerenes stacked on diamond surface and acted as building blocks forming a polymerlike structure. The assembled film was also highly porous due to cluster-cluster interaction. The bond angle distribution and the neighbor-atom-number distribution of the film presented a well-defined local order, which is of sp(3) hybridization character, the same as that of a free C-20 cage. These simulation results are again in good agreement with the experimental observation. Finally, the deposited C-20 film showed high stability even when the temperature was raised up to 1500 K.
Keyword Physics, Condensed Matter
Molecular-dynamics Simulations
Smallest Fullerene
(001)-(2x1) Surface
Rotational Energy
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
Australian Institute for Bioengineering and Nanotechnology Publications
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Citation counts: TR Web of Science Citation Count  Cited 21 times in Thomson Reuters Web of Science Article | Citations
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Created: Fri, 25 Jan 2008, 15:42:39 EST