DC Field | Value | Language |
---|---|---|
dc.contributor.author | Song, Seung Min | ko |
dc.contributor.author | Cho, Byung Jin | ko |
dc.date.accessioned | 2013-03-12T03:18:59Z | - |
dc.date.available | 2013-03-12T03:18:59Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2010-08 | - |
dc.identifier.citation | NANOTECHNOLOGY, v.21, no.33 | - |
dc.identifier.issn | 0957-4484 | - |
dc.identifier.uri | http://hdl.handle.net/10203/101187 | - |
dc.description.abstract | The properties of micromechanically exfoliated graphene on different oxide dielectrics-SiO(2), Al(2)O(3), and HfO(2)-are investigated by Raman spectroscopy and AFM measurement. The pristine graphene has stronger adhesion and a higher hole concentration when the dielectric constant of the underlying oxide is higher. It is found that annealing under a high vacuum significantly enhances the adhesion between graphene and the oxides and causes a shift of the Raman G and 2D bands to a higher wavelength. The high vacuum annealing also causes an increase in carrier concentration of up to ten times with a corresponding Fermi level shift of similar to 0.65 eV for graphene on HfO(2). On the other hand, the high vacuum annealing of graphene on SiO(2) induces a biaxial compressive stress as high as 4 GPa on graphene. The results provide understanding on the interaction of graphene and oxides, which is essential for successful realization of graphene-based electronic devices. | - |
dc.language | English | - |
dc.publisher | IOP PUBLISHING LTD | - |
dc.subject | RAMAN-SPECTROSCOPY | - |
dc.subject | GRAPHITE | - |
dc.title | Investigation of interaction between graphene and dielectrics | - |
dc.type | Article | - |
dc.identifier.wosid | 000280383500020 | - |
dc.identifier.scopusid | 2-s2.0-77957839771 | - |
dc.type.rims | ART | - |
dc.citation.volume | 21 | - |
dc.citation.issue | 33 | - |
dc.citation.publicationname | NANOTECHNOLOGY | - |
dc.identifier.doi | 10.1088/0957-4484/21/33/335706 | - |
dc.contributor.localauthor | Cho, Byung Jin | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | RAMAN-SPECTROSCOPY | - |
dc.subject.keywordPlus | GRAPHITE | - |
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