Electronic structures of one-dimensional metal-molecule hybrid chains studied using scanning tunneling microscopy and density functional theory

Kyung Hoon Chung, Bon Gil Koo, Howon Kim, Jong Keon Yoon, Ji Hoon Kim, Young Kyun Kwon, Se-Jong Kahng

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The electronic structures of self-assembled hybrid chains comprising Ag atoms and organic molecules were studied using scanning tunneling microscopy (STM) and spectroscopy (STS) in parallel with density functional theory (DFT). Hybrid chains were prepared by catalytic breaking of Br-C bonds in 4,4″-dibromo-p-terphenyl molecules, followed by spontaneous formation of Ag-C bonds on Ag(111). An atomic model was proposed for the observed hybrid chain structures. Four electronic states were resolved using STS measurements, and strong energy dependence was observed in STM images. These results were explained using first-principles calculations based on DFT.

Original languageEnglish
Pages (from-to)7304-7308
Number of pages5
JournalPhysical Chemistry Chemical Physics
Issue number20
Publication statusPublished - 2012 May 28


ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Physics and Astronomy(all)

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