PTCDA molecules on an InSb(001) surface studied with atomic force microscopy

被引：12
|
作者：
Kolodziej, J. J. [1 ]
Goryl, M. [1 ]
Konior, J. [1 ]
Krok, F. [1 ]
Szymonski, M. [1 ]
机构：
[1] Jagiellonian Univ, Res Ctr Nanometer Scale Sci & Adv Mat, Fac Phys Astron & Appl Comp Sci, PL-30059 Krakow, Poland
来源：
NANOTECHNOLOGY | 2007年 / 18卷 / 13期
关键词：
D O I：
10.1088/0957-4484/18/13/135302
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
PTCDA (3,4,9,10-perylene-tetracarboxylic-dianhydride) molecular structures assembled on an InSb( 001) c( 8 x 2) reconstructed surface have been studied using frequency modulated atomic force microscopy. The high-resolution imaging of the structures is possible through repulsive interactions, using the constant height scanning mode. During initial stages of growth the [ 110] diffusion channel dominates as indicated by formation of long PTCDA molecular chains parallel to the [ 110] crystallographic direction on the InSb surface. For a single monolayer coverage a wetting layer of PTCDA is formed. Finally it is shown that the PTCDA/InSb is a promising system for building molecular nanostructures by manipulation of single molecules with the AFM tip.
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页数：6
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