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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 4835 | - |
dc.citation.number | 9 | - |
dc.citation.startPage | 4828 | - |
dc.citation.title | ACS APPLIED NANO MATERIALS | - |
dc.citation.volume | 1 | - |
dc.contributor.author | Freedy, Keren M. | - |
dc.contributor.author | Beechem, Thomas E. | - |
dc.contributor.author | Litwin, Peter M. | - |
dc.contributor.author | Sales, Maria Gabriela | - |
dc.contributor.author | Huang, Ming | - |
dc.contributor.author | Ruoff, Rodney S. | - |
dc.contributor.author | McDonnell, Stephen J. | - |
dc.date.accessioned | 2023-12-21T20:12:09Z | - |
dc.date.available | 2023-12-21T20:12:09Z | - |
dc.date.created | 2019-01-15 | - |
dc.date.issued | 2018-09 | - |
dc.description.abstract | The chemical interaction between Ti and graphene is of significant interest for engineering low-resistance electrical contacts. To study the interface chemistry, sequential depositions of Ti are performed on both as-received and ultrahigh-vacuum (UHV)-annealed chemical-vapor-deposition-grown graphene samples. In situ X-ray photoelectron spectroscopy (XPS) reveals no experimental evidence for the reaction of Ti with graphene at room temperature or after heating to 500 °C. The presence of the TiC chemical state is instead attributed to reactions between Ti and background gases in the UHV chamber as well as adventitious C on the surface of the graphene sample. We find that surface contamination can be substantially reduced by annealing in UHV. The deposition of Ti on graphene results in n-type doping, which manifests in core-level shifts and broadening of the graphene C 1s peak. Annealing the sample following the deposition of Ti reverses the n-type doping. The Raman spectroscopy results are in agreement with XPS analysis, which together provide insight into the possible mechanisms driving the changes in graphene doping. | - |
dc.identifier.bibliographicCitation | ACS APPLIED NANO MATERIALS, v.1, no.9, pp.4828 - 4835 | - |
dc.identifier.doi | 10.1021/acsanm.8b01024 | - |
dc.identifier.issn | 2574-0970 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/25667 | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/acsanm.8b01024 | - |
dc.identifier.wosid | 000461401000048 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Unraveling Chemical Interactions between Titanium and Graphene for Electrical Contact Applications | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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