| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Self-Assembly of TBrPP-Co Molecules on an Ag/Si(111) Surface Studied by Scanning Tunneling Microscopy |
LI Qing1,2, Shiro Yamazaki2, Toyoaki Eguchi2, MA Xu-Cun1, JIA Jin-Feng1,3, XUE Qi-Kun1,3, Yukio Hasegawa2
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| 1Institute of Physics, Chinese Academy of Science, Beijing 1001902The Institute for Solid State Physics, The University of Tokyo, 5-1-5, Kashiwa-no-ha, Kashiwa 277-8581, Japan3Department of Physics, Tsinghua University, Beijing 100084 |
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| Cite this article: |
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LI Qing, Shiro Yamazaki, Toyoaki Eguchi et al 2010 Chin. Phys. Lett. 27 026801 |
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Abstract Self-assembly of TBrPP-Co molecules on a Si(111)-√3t×√3 Ag substrate is studied by low-temperature scanning tunneling microscopy. With the same adsorbed amount (0.07 ML), the molecules deposited by low-temperature evaporation show three kinds of ordered structures whereas those deposited by high-temperature evaporation have size-dependent ordered structures. The distinct differences in the self-assembly structures and in the electron density of states inside the molecule near the Fermi energy demonstrate that the Br atoms of the molecule desorb at the higher evaporation temperature.
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| Keywords:
68.37.Ef
68.43.Hn
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Received: 28 September 2009
Published: 08 February 2010
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| PACS: |
68.37.Ef
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(Scanning tunneling microscopy (including chemistry induced with STM))
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68.43.Hn
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(Structure of assemblies of adsorbates (two-and three-dimensional clustering))
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