Displacement Processes of 1-Adamanetanethiol Self-Assembled Monolayers on Au(111) by 1-Hexanethiol
- Title
- Displacement Processes of 1-Adamanetanethiol Self-Assembled Monolayers on Au(111) by 1-Hexanethiol
- Author
- 노재근
- Keywords
- Self-Assembled Monolayers; 1-Adamantanethiol; 1-Hexanethiol; Displacement; Scanning Tunneling Microscopy; Cyclic Voltammetry
- Issue Date
- 2019-08
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v. 19, no. 8, Page. 4732-4735
- Abstract
- Displacement processes of pre-adsorbed 1-admanetanethiol (ADT) self-assembled monolayers (SAMs) on Au(111) by 1-hexanethiol (HT) at room temperature were investigated by scanning tunneling microscopy (STM) and cyclic voltammetry (CV). Molecular-scale STM imaging clearly revealed that phase transitions from the (7 x 7) phase for ADT SAMs to the c(4 x 2) phase for HT SAMs via intermediate phase including bright aggregated islands and disordered phase. Moreover, it was found that ADT SAMs were completely displaced by HT molecules with a short hexyl chain within an hour. The CV measurements showed that cathodic peaks for SAM-modified Au(111) electrodes as a function of displacement time were varied with the structural change of displaced SAMs. Our results provide new insight into understanding the displacement processes of ADT SAMs on Au(111) by HT.
- URI
- https://www.ingentaconnect.com/content/asp/jnn/2019/00000019/00000008/art00054https://repository.hanyang.ac.kr/handle/20.500.11754/153616
- ISSN
- 1533-4880; 1533-4899
- DOI
- 10.1166/jnn.2019.16705
- Appears in Collections:
- COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > CHEMISTRY(화학과) > Articles
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