Atomic-scale intermolecular interaction of hydrogen with a single VOPc molecule on the Au(111) surface
DC Field | Value | Language |
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dc.contributor.author | Jinoh Jung | - |
dc.contributor.author | Shinjae Nam | - |
dc.contributor.author | Christoph Wolf | - |
dc.contributor.author | Andreas J. Heinrich | - |
dc.contributor.author | Jungseok Chae | - |
dc.date.accessioned | 2021-03-22T02:30:05Z | - |
dc.date.accessioned | 2021-03-22T02:30:05Z | - |
dc.date.available | 2021-03-22T02:30:05Z | - |
dc.date.available | 2021-03-22T02:30:05Z | - |
dc.date.created | 2021-02-26 | - |
dc.date.issued | 2021-02-12 | - |
dc.identifier.issn | 2046-2069 | - |
dc.identifier.uri | https://pr.ibs.re.kr/handle/8788114/9234 | - |
dc.description.abstract | Molecular dynamics of hydrogen molecules (H-2) on surfaces and their interactions with other molecules have been studied with the goal of improvement of hydrogen storage devices for energy applications. Recently, the dynamic behavior of a H-2 at low temperature has been utilized in scanning tunnelling microscopy (STM) for sub-atomic resolution imaging within a single molecule. In this work, we have investigated the intermolecular interaction between H-2 and individual vanadyl phthalocyanine (VOPc) molecules on Au(111) substrates by using STM and non-contact atomic force microscopy (NC-AFM). We measured tunnelling spectra and random telegraphic noise (RTN) on VOPc molecules to reveal the origin of the dynamic behavior of the H-2. The tunnelling spectra show switching between two states with different tunnelling conductance as a function of sample bias voltage and RTN is measured near transition voltage between the two states. The spatial variation of the RTN indicates that the two-state fluctuation is dependent on the atomic-scale interaction of H-2 with the VOPc molecule. Density functional theory calculations show that a H-2 molecule can be trapped by a combination of a tip-induced electrostatic potential well and the potential formed by a VOPc underneath. We suggest the origin of the two-state noise as transition of H-2 between minima in these potentials with barrier height of 20-30 meV. In addition, the bias dependent AFM images verify that H-2 can be trapped and released at the tip-sample junction. | - |
dc.language | 영어 | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Atomic-scale intermolecular interaction of hydrogen with a single VOPc molecule on the Au(111) surface | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.identifier.wosid | 000614616900041 | - |
dc.identifier.scopusid | 2-s2.0-85100459340 | - |
dc.identifier.rimsid | 74748 | - |
dc.contributor.affiliatedAuthor | Jinoh Jung | - |
dc.contributor.affiliatedAuthor | Shinjae Nam | - |
dc.contributor.affiliatedAuthor | Christoph Wolf | - |
dc.contributor.affiliatedAuthor | Andreas J. Heinrich | - |
dc.contributor.affiliatedAuthor | Jungseok Chae | - |
dc.identifier.doi | 10.1039/d0ra08951f | - |
dc.identifier.bibliographicCitation | RSC ADVANCES, v.11, no.11, pp.6240 - 6245 | - |
dc.relation.isPartOf | RSC ADVANCES | - |
dc.citation.title | RSC ADVANCES | - |
dc.citation.volume | 11 | - |
dc.citation.number | 11 | - |
dc.citation.startPage | 6240 | - |
dc.citation.endPage | 6245 | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |