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Scanning Tunneling Microscopy Investigation of Copper Phthalocyanine and Truxenone Derivative Binary Superstructures on Graphite
Author(s) -
Liu Jia,
Wang Dong,
Wang JieYu,
Pei Jian,
Wan LiJun
Publication year - 2011
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201000628
Subject(s) - scanning tunneling microscope , highly oriented pyrolytic graphite , materials science , phthalocyanine , graphite , copper phthalocyanine , copper , pyrolytic carbon , scanning tunneling spectroscopy , nanotechnology , spectroscopy , self assembly , optoelectronics , chemistry , organic chemistry , quantum mechanics , pyrolysis , metallurgy , composite material , physics
The binary self‐assembly of copper phthalocyanine (CuPc) and 2,3,7,8,12,13‐hexahexyloxy‐truxenone (TrO23) at the solid/liquid interface of highly oriented pyrolytic graphite (HOPG) was investigated by using scanning tunneling microscopy (STM) and scanning tunneling spectroscopy (STS). Pseduohexagonal and linear patterned superstructures of CuPc are obtained by co‐adsorbing with TrO23. High‐resolution STM images reveal the structural details of the arrangement of TrO23 and CuPc in the binary assembly structures. The molecular ratio between CuPc and TrO23 in the adlayer can be modulated by the CuPc concentration in liquid phase. The electronic properties of CuPc and TrO23 in the co‐adsorbed self‐assembly are investigated by STS. The results presented here are helpful to the design and fabrication of multi‐component functional molecular nanostructures.