Formation and annealing effect of tolanethioacetate self-assembled monolayers on Au(111)open access
- Authors
- Jeong, Youngdo; Han, Jin Wook; Kim, Nakjoong; Lee, Youngil; Lee, Changjin; Hara, Masahiko; Noh, Jaegeun
- Issue Date
- Dec-2007
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- self-assembled monolayers; tolanethioacetate; ordered domains; annealing effect; scanning tunneling microscopy
- Citation
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.28, no.12, pp.2445 - 2448
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY
- Volume
- 28
- Number
- 12
- Start Page
- 2445
- End Page
- 2448
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/179306
- DOI
- 10.5012/bkcs.2007.28.12.2445
- ISSN
- 0253-2964
- Abstract
- Self-assembled monolayers (SAMs) were formed by adsorption of thioacetyl-terminated tolanethioacetate (TTA) on Au(111) in a 0.5-mM ethanol solution after one day immersion at room temperature. Molecular-scale STM imaging revealed that the TTA SAMs were composed of two mixed phases; an ordered phase with small domains describing a (root 3 x 2 root 3)R30 degrees structure and a disordered phase. Interestingly, after annealing the precovered TTA SAMs on Au(111) at 90 degrees C for 1 h, the small ordered domains grew unidirectionally, resulting in the formation of unique rod-like domains, which were assigned a (root 3 x 2 root 3)R7 degrees structure. These results will be very useful in understanding the formation and thermal behavior of TTA SAMs on gold surfaces.
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