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
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
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
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
摘要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.
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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2010, Vol. 27 
