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Anisotropic in-plane thermal conductivity of black phosphorus nanoribbons at temperatures higher than 100 K

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dc.contributor.authorLee, Sangwook-
dc.contributor.authorYang, Fan-
dc.contributor.authorSuh, Joonki-
dc.contributor.authorYang, Sijie-
dc.contributor.authorLee, Yeonbae-
dc.contributor.authorLi, Guo-
dc.contributor.authorChoe, Hwan Sung-
dc.contributor.authorSuslu, Aslihan-
dc.contributor.authorChen, Yabin-
dc.contributor.authorKo, Changhyun-
dc.contributor.authorPark, Joonsuk-
dc.contributor.authorLiu, Kai-
dc.contributor.authorLi, Jingbo-
dc.contributor.authorHippalgaonkar, Kedar-
dc.contributor.authorUrban, Jeffrey J.-
dc.contributor.authorTongay, Sefaattin-
dc.contributor.authorWu, Junqiao-
dc.date.accessioned2022-04-19T09:49:37Z-
dc.date.available2022-04-19T09:49:37Z-
dc.date.issued2015-10-
dc.identifier.issn2041-1723-
dc.identifier.urihttps://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/147115-
dc.description.abstractBlack phosphorus attracts enormous attention as a promising layered material for electronic, optoelectronic and thermoelectric applications. Here we report large anisotropy in in-plane thermal conductivity of single-crystal black phosphorus nanoribbons along the zigzag and armchair lattice directions at variable temperatures. Thermal conductivity measurements were carried out under the condition of steady-state longitudinal heat flow using suspended-pad micro-devices. We discovered increasing thermal conductivity anisotropy, up to a factor of two, with temperatures above 100 K. A size effect in thermal conductivity was also observed in which thinner nanoribbons show lower thermal conductivity. Analysed with the relaxation time approximation model using phonon dispersions obtained based on density function perturbation theory, the high anisotropy is attributed mainly to direction-dependent phonon dispersion and partially to phonon-phonon scattering. Our results revealing the intrinsic, orientation-dependent thermal conductivity of black phosphorus are useful for designing devices, as well as understanding fundamental physical properties of layered materials.-
dc.language영어-
dc.language.isoENG-
dc.publisherNATURE PUBLISHING GROUP-
dc.titleAnisotropic in-plane thermal conductivity of black phosphorus nanoribbons at temperatures higher than 100 K-
dc.typeArticle-
dc.publisher.location영국-
dc.identifier.doi10.1038/ncomms9573-
dc.identifier.scopusid2-s2.0-84986570015-
dc.identifier.wosid000364932600020-
dc.identifier.bibliographicCitationNATURE COMMUNICATIONS, v.6-
dc.citation.titleNATURE COMMUNICATIONS-
dc.citation.volume6-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClasssci-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.identifier.urlhttps://www.nature.com/articles/ncomms9573-
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