Adlayer structure of octa-alkoxy-substituted copper(II) phthalocyanine on Au(111) by electrochemical scanning tunneling microscopy

作者：Wang Li^*; Ou Yang Liangyue; Yau Shueh Lin

来源：Microscopy Research and Technique, 2008, 71(1): 20-25.

DOI：10.1002/jemt.20519

• electrochemical scanning tunneling microscopy
• octa-alkoxy-substituted copper(II) phthalocyanine
• Au(111)
• adlayer

Electrochemical scanning tunneling microscopy (ECSTM) has been used to examine the adlayer of octa-alkoxy-substituted copper(II) phthalocyanines (CuPc(OC8H17)(8)) on Au(111) in 0.1 M HClO4, 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(OC8H17)(8) with coexistent rectangular and hexagonal symmetries. High-quality STM molecular resolution yielded the internal molecular structure and the orientation of CuPc(OC8H17)(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.

• 出版日期2008-1
• 单位江西师范大学; 中央民族大学