Scanning tunneling microscopy investigation of copper phthalocyanine and truxenone derivative binary superstructures on graphite

Jia Liu; Dong Wang; Jie-Yu Wang; Jian Pei; Li-Jun Wan

doi:10.1002/asia.201000628

Scanning tunneling microscopy investigation of copper phthalocyanine and truxenone derivative binary superstructures on graphite

Chem Asian J. 2011 Feb 1;6(2):424-9. doi: 10.1002/asia.201000628. Epub 2010 Nov 24.

Authors

Jia Liu¹, Dong Wang, Jie-Yu Wang, Jian Pei, Li-Jun Wan

Affiliation

¹ Institute of Chemistry, the Chinese Academy of Sciences (CAS) and Beijing National Laboratory for Molecular Sciences, Beijing 100190, China.

PMID: 21254420
DOI: 10.1002/asia.201000628

Abstract

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.