用原子力显微镜研究InSb(001)表面上的PTCDA分子。
PTCDA molecules on an InSb(001) surface studied with atomic force microscopy.
作者信息
Kolodziej J J, Goryl M, Konior J, Krok F, Szymonski M
机构信息
Research Centre for Nanometer-scale Science and Advanced Materials (NANOSAM), Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland.
出版信息
Nanotechnology. 2007 Apr 4;18(13):135302. doi: 10.1088/0957-4484/18/13/135302. Epub 2007 Feb 28.
PTCDA (3,4,9,10-perylene-tetracarboxylic-dianhydride) molecular structures assembled on an InSb(001) c(8 × 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.
利用调频原子力显微镜研究了组装在InSb(001) c(8×2)重构表面上的3,4,9,10-苝四羧酸二酐（PTCDA）分子结构。通过使用恒高扫描模式的排斥相互作用，可以实现对这些结构的高分辨率成像。在生长的初始阶段，[110]扩散通道占主导地位，这表现为在InSb表面形成了与[110]晶体学方向平行的长PTCDA分子链。对于单层覆盖，形成了PTCDA的润湿层。最后表明，PTCDA/InSb是一个通过用原子力显微镜（AFM）针尖操纵单个分子来构建分子纳米结构的有前景的体系。
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