Steric effects on adsorption and desorption behaviors of alkanethiol self-assembled monolayers on Au(111)
- Authors
- Ito, Eisuke; Noh, Jaegeun; Hara, Masahiko
- Issue Date
- Sep-2008
- Publisher
- ELSEVIER SCIENCE BV
- Citation
- CHEMICAL PHYSICS LETTERS, v.462, no.4-6, pp.209 - 212
- Indexed
- SCIE
SCOPUS
- Journal Title
- CHEMICAL PHYSICS LETTERS
- Volume
- 462
- Number
- 4-6
- Start Page
- 209
- End Page
- 212
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/171890
- DOI
- 10.1016/j.cplett.2008.07.075
- ISSN
- 0009-2614
- Abstract
- Adsorption conditions and desorption processes of self-assembled monolayers (SAMs) formed on Au(111) by propanethiol (PT) and PT-derivatives containing methyl groups on the alpha-carbon atom were examined by X-ray photoelectron spectroscopy (XPS) and thermal desorption spectroscopy (TDS). XP spectra showed the formation of S-Au bonds, while adsorption condition depends on the molecular backbone structure. TDS indicated that PT SAM has two desorption fragments, dimer and monomer, at 450 K and 370 K, respectively. By increasing the number of methyl group, the dimerization was significantly suppressed. The monomer desorption peak shifted to a lower temperature, suggesting that the desorption process of alkanethiol SAMs is influenced by side-groups.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 자연과학대학 > 서울 화학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/171890)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.