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STM studies of PTCDA supramolecular self-assembling on anisotropic surfaces of reconstructed InSb

机译：重建InSb各向异性表面上PTCDA超分子自组装的STM研究

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摘要

Self-assembly of 3,4,9,10-perylene-tetracarboxylic-dianhydride (PTCDA) molecules on a c(8 ×2) reconstructed InSb(001) surface as well as on an asymmetrical (1×3) InSb(001) is investigated by means of high resolution scanning tunneling microscopy. The formation of well-ordered one-dimensional molecular lines is observed at low coverage on a former face, whereas on the latter molecules are found as isolated entities. At room temperature spontaneous hopping between energetically similar sites is observed within the lines. At a monolayer coverage flat molecular surface is obtained for both reconstructions, on the c(8 × 2) the layer is composed of neighboring one-dimensional lines, on the (1 × 3) molecular structure does not reveal any long range order. Application of the special experimental procedure provides direct comparison of molecule behavior on both reconstructions of the same sample.
机译：在ac（8×2）重建的InSb（001）表面以及不对称（1×3）InSb（001）上的3,4,9,10-per-四羧酸二酐（PTCDA）分子的自组装为高分辨率扫描隧道显微镜的研究。在前一个表面以低覆盖率观察到秩序良好的一维分子线的形成，而在后一个表面上发现分子是孤立的实体。在室温下，在管线内观察到在能量上相似的位置之间的自发跳跃。在单层覆盖下，两次重构均获得了平坦的分子表面，在c（8×2）上，该层由相​​邻的一维线组成，在（1×3）分子结构上未显示任何长程有序。特殊实验程序的应用提供了在相同样品的两种重建中分子行为的直接比较。

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  • 来源
    《Applied Surface Science》 |2011年第4期|p.1300-1305|共6页
  • 作者

    Szymon Godlewski; Marek Szymonski;

  • 作者单位

    Centre for Nanometer-Scale Science and Advanced Materials, NANOSAM, Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University,Reymonta 4,30-059 Krakow, Poland;

    Centre for Nanometer-Scale Science and Advanced Materials, NANOSAM, Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University,Reymonta 4,30-059 Krakow, Poland;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    STM; organic molecules; self-assembly; semiconductors;

    机译：STM;有机分子自组装;半导体;

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