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Adlayer structure of octa‐alkoxy‐substituted copper(II) phthalocyanine on Au(111) by electrochemical scanning tunneling microscopy
Author(s) -
Wang Li,
OuYang Liangyue,
Yau ShuehLin
Publication year - 2008
Publication title -
microscopy research and technique
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.536
H-Index - 118
eISSN - 1097-0029
pISSN - 1059-910X
DOI - 10.1002/jemt.20519
Subject(s) - scanning tunneling microscope , phthalocyanine , chemistry , electrochemistry , molecule , alkoxy group , copper , crystallography , cyclic voltammetry , copper phthalocyanine , materials science , nanotechnology , electrode , organic chemistry , optoelectronics , alkyl
Electrochemical scanning tunneling microscopy (ECSTM) has been used to examine the adlayer of octa‐alkoxy‐substituted copper(II) phthalocyanines (CuPc(OC 8 H 17 ) 8 ) on Au(111) in 0.1 M HClO 4 , where the molecular adlayer was prepared by spontaneous adsorption from a benzene solution containing this molecule. Topography STM scans revealed long‐range ordered, interweaved arrays of CuPc(OC 8 H 17 ) 8 with coexistent rectangular and hexagonal symmetries. High‐quality STM molecular resolution yielded the internal molecular structure and the orientation of CuPc(OC 8 H 17 ) 8 admolecules. These STM results could shed insight into the method of generating ordered molecular assemblies of phthalocyanine molecules with long‐chained substitutes on metal surface. Microsc. Res. Tech., 2008. © 2007 Wiley‐Liss, Inc.