Significantly reduced thermal conductivity and enhanced thermoelectric properties of single- and bi-layer graphene nanomeshes with sub-10 nm neck-width
DC Field | Value | Language |
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dc.contributor.author | Oh, Jinwoo | - |
dc.contributor.author | Yoo, Hoyeon | - |
dc.contributor.author | Choi, Jaeyoo | - |
dc.contributor.author | Kim, Jeong Yun | - |
dc.contributor.author | Lee, Dong Su | - |
dc.contributor.author | Kim, Myung Jong | - |
dc.contributor.author | Lee, Jong-Chan | - |
dc.contributor.author | Kim, Woo Nyon | - |
dc.contributor.author | Grossman, Jeffrey C. | - |
dc.contributor.author | Park, Jong Hyuk | - |
dc.contributor.author | Lee, Sang-Soo | - |
dc.contributor.author | Kim, Heesuk | - |
dc.contributor.author | Son, Jeong Gon | - |
dc.date.accessioned | 2021-09-03T06:57:09Z | - |
dc.date.available | 2021-09-03T06:57:09Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2017-05 | - |
dc.identifier.issn | 2211-2855 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/83680 | - |
dc.description.abstract | When graphene is shrunk into similar to 10 nm scale graphene nanoribbons or nanomesh structures, it is expected that not only electrical properties but also thermal conductivity and thermoelectric property are significantly altered due to the quantum confinement effect and extrinsic phonon-edge scattering. Here, we fabricate large-area, sub-10 nm single-and bilayer graphene nanomeshes from block copolymer self-assembly and measure the thermal conductivity, thermoelectric and electrical transport properties to experimentally verify the effect of sub-10 nm quantum confinement, phonon-edge scattering and cross-plane coupling. Among the large variety of the samples, bilayer graphene nanomesh having 8 nm-neck width showed significantly low thermal conductivity down to similar to 78 W m(-1) K-1, which is the lowest thermal conductivity for suspended graphene nanostructures, and a high thermopower value of -520 mu V K-1, while it still shows the comparably high carrier mobility. Classical and quantum mechanical calculations successfully supported our nanomesh approach, which can achieve high thermoelectric properties based on the significantly reduced thermal conductivity and higher thermopower due to the confined geometry. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | BLOCK-COPOLYMER LITHOGRAPHY | - |
dc.subject | NANOPERFORATED GRAPHENE | - |
dc.subject | FUNCTIONALIZED GRAPHENE | - |
dc.subject | LAYER GRAPHENE | - |
dc.subject | TRANSPORT | - |
dc.subject | NANORIBBONS | - |
dc.subject | FABRICATION | - |
dc.subject | TRANSISTORS | - |
dc.subject | CROSSOVER | - |
dc.subject | RIBBONS | - |
dc.title | Significantly reduced thermal conductivity and enhanced thermoelectric properties of single- and bi-layer graphene nanomeshes with sub-10 nm neck-width | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Woo Nyon | - |
dc.identifier.doi | 10.1016/j.nanoen.2017.03.019 | - |
dc.identifier.scopusid | 2-s2.0-85015345695 | - |
dc.identifier.wosid | 000400647900004 | - |
dc.identifier.bibliographicCitation | NANO ENERGY, v.35, pp.26 - 35 | - |
dc.relation.isPartOf | NANO ENERGY | - |
dc.citation.title | NANO ENERGY | - |
dc.citation.volume | 35 | - |
dc.citation.startPage | 26 | - |
dc.citation.endPage | 35 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | BLOCK-COPOLYMER LITHOGRAPHY | - |
dc.subject.keywordPlus | NANOPERFORATED GRAPHENE | - |
dc.subject.keywordPlus | FUNCTIONALIZED GRAPHENE | - |
dc.subject.keywordPlus | LAYER GRAPHENE | - |
dc.subject.keywordPlus | TRANSPORT | - |
dc.subject.keywordPlus | NANORIBBONS | - |
dc.subject.keywordPlus | FABRICATION | - |
dc.subject.keywordPlus | TRANSISTORS | - |
dc.subject.keywordPlus | CROSSOVER | - |
dc.subject.keywordPlus | RIBBONS | - |
dc.subject.keywordAuthor | Graphene nanomesh | - |
dc.subject.keywordAuthor | Thermoelectric | - |
dc.subject.keywordAuthor | Thermal conductivity | - |
dc.subject.keywordAuthor | Bilayer graphene nanostructures | - |
dc.subject.keywordAuthor | Block copolymer | - |
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