Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 노재근 | - |
dc.date.accessioned | 2018-07-17T01:14:01Z | - |
dc.date.available | 2018-07-17T01:14:01Z | - |
dc.date.issued | 2016-06 | - |
dc.identifier.citation | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v. 16, NO 6, Page. 6388-6392 | en_US |
dc.identifier.issn | 1533-4880 | - |
dc.identifier.issn | 1533-4899 | - |
dc.identifier.uri | http://www.ingentaconnect.com/content/asp/jnn/2016/00000016/00000006/art00144 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/72610 | - |
dc.description.abstract | To understand the structural stability of as-prepared octanethiol (OT) self-assembled monolayers (SAMs) with a fully covered c(4x2) phase on Au(111) in ultrahigh vacuum (UHV) conditions of 3x10(-7) Pa at room temperature, we examined OT SAM samples obtained as a function of storage period using scanning tunneling microscopy (STM). STM imaging revealed that phase transition of OT SAMs after storage in UHV for 3 days occurs from the c(4x2) phase to the mixed phase containing ordered c(4x2) and disordered phases. It was also observed that the disordered phase was mainly located at around vacancy islands and near step edges of Au(111) terraces, implying that desorption of OT molecules chemisorbed on Au(111) in UHV occurs more quickly in these regions compared with in the closely packed and ordered domains. After a longer storage in UHV for 6 days, OT SAMs with the c(4x2) phase were changed to the disordered phase containing a partially ordered domain with a row structure. From this study, we clearly demonstrated that OT molecules in SAMs on Au(111) are desorbed spontaneously in UHV at room temperature, resulting in the formation of disordered and row phases. | en_US |
dc.description.sponsorship | This research was financially supported by the MOTIE, KIAT and DGIRPE through the Leading Industry Development for Economic Region (R0001191), by the GBSP grant funded by the Korea government (MSIP, GBSP-001-111228-04) and Converging Research Center Program through the Ministry of Science, ICT and Future Planning, Korea (NRF-2014M3C1A8048817), and by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2013R1A1A2009781 and NRF-2012R1A6A1029029). | en_US |
dc.language.iso | en | en_US |
dc.publisher | AMER SCIENTIFIC PUBLISHERS | en_US |
dc.subject | Octanethiol | en_US |
dc.subject | Self-Assembled Monolayer | en_US |
dc.subject | Desorption | en_US |
dc.subject | Scanning Tunneling Microscopy | en_US |
dc.title | Structural Stability and Phase Transitions of Octanethiol Self-Assembled Monolayers on Au(111) in Ultrahigh Vacuum | en_US |
dc.type | Article | en_US |
dc.relation.no | 6 | - |
dc.relation.volume | 16 | - |
dc.identifier.doi | 10.1166/jnn.2016.12138 | - |
dc.relation.page | 6388-6392 | - |
dc.relation.journal | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | - |
dc.contributor.googleauthor | Lee, Nam-Suk | - |
dc.contributor.googleauthor | Cho, Gyoujin | - |
dc.contributor.googleauthor | Shin, Hoon-Kyu | - |
dc.contributor.googleauthor | Noh, Jaegeun | - |
dc.relation.code | 2016003411 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF NATURAL SCIENCES[S] | - |
dc.sector.department | DEPARTMENT OF CHEMISTRY | - |
dc.identifier.pid | jgnoh | - |
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