Highly ordered C60 monolayer self-assembled by using an iodine template on an Au(111) surface in solution

Yaw Chia Yang, Chi Yun Chen, Yuh Lang Lee

研究成果: Article

7 引文 斯高帕斯(Scopus)

摘要

An iodine-modified Au(111) surface, (I/Au(111)), was used as a substrate to prepare a C60 adlayer by self-organization in a benzene solution. A highly ordered C60 adlayer was successfully prepared due to the moderate C60-I/Au(111) interaction. Two lattice structures, (2√3 × 2√3)R30° and p(2 × 2), were imaged for this C60 adlayer. For the first structure, a featureless ball-like molecular shape was imaged, ascribed to the molecular rotation resulting from a symmetrical location between C60 and iodine atoms. For p(2 × 2) structure, the asymmetrical location of C60 with respect to the iodine atoms freezes the C60 molecules on the substrate, leading to a clear image of intramolecular structure. The intermediate iodine atoms in the C60/I/Au(111) adlayer can be desorbed by electrochemically reduction without significantly affecting the ordering of the C60 adlayer. However, the internal pattern of C60 disappears in the absence of iodine.

原文English
頁(從 - 到)11611-11615
頁數5
期刊Langmuir
24
發行號20
DOIs
出版狀態Published - 2008 十月 21

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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