Coexistence of Closely Packed c(4 x 2) and Striped Phases in Self-Assembled Monolayers of Decylthiocyanates on Au(111)open access
- Authors
- Choi, Youngsik; Kang, Hungu; Choi, Inchang; Lee, Nam-Suk; Cho, Jun-Hyung; Jang, Chang-Hyun; Noh, Jaegeun
- Issue Date
- Apr-2010
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- Decylthiocyanate; Self-assembled monolayers; Scanning tunneling microscopy; Structural order; Vapor deposition
- Citation
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.31, no.4, pp.901 - 904
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY
- Volume
- 31
- Number
- 4
- Start Page
- 901
- End Page
- 904
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/175211
- DOI
- 10.5012/bkcs.2010.31.04.901
- ISSN
- 0253-2964
- Abstract
- Decylthiocyanate (DTC) self-assembled monolayers (SAMs) on Au(111) were prepared by solution and vapor phase deposition methods at 50 degrees C for 24 h The formation and surface structure of DTC SAMs were examined using scanning tunneling microscopy (STM) STM imaging revealed that DTC SAMs formed in 1 mM ethanol solution at 50 degrees C were composed of small ordered domains with lateral dimensions of a few nanometers and disordered phases, whereas DTC SAMs formed in the vapor phase at 50 degrees C contained two ordered phases a closely packed c(4 x 2) superlattice and a striped phase with an mterstripe spacing of 26 - 2 8 nm It was also found that the ordered domain and vacancy island formation for DTC SAMs on Au(111) differs significantly from that of decanethiol SAMs, suggesting that adsorption mechanism is different from each other From this study, it was confirmed that DTC SAMs with a high degree of structural order can be obtained by vapor phase deposition.
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