Three-fold rotational defects in two-dimensional transition metal dichalcogenides

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorLin, Yung-Changen_US
dc.contributor.authorBjörkman, Torbjörnen_US
dc.contributor.authorKomsa, Hannu-Pekkaen_US
dc.contributor.authorTeng, Po-Yuanen_US
dc.contributor.authorYeh, Chao-Huien_US
dc.contributor.authorHuang, Fei-Shengen_US
dc.contributor.authorLin, Kuan-Hungen_US
dc.contributor.authorJadczak, Joannaen_US
dc.contributor.authorHuang, Ying-Shengen_US
dc.contributor.authorChiu, Po-Wenen_US
dc.contributor.authorKrasheninnikov, Arkady V.en_US
dc.contributor.authorSuenaga, Kazuen_US
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.groupauthorElectronic Properties of Materialsen
dc.contributor.organizationNational Institute of Advanced Industrial Science and Technologyen_US
dc.contributor.organizationNational Tsing Hua Universityen_US
dc.contributor.organizationNational Taiwan University of Science and Technologyen_US
dc.contributor.organizationWroclaw University of Science and Technologyen_US
dc.date.accessioned2017-05-11T06:48:34Z
dc.date.available2017-05-11T06:48:34Z
dc.date.issued2015-04en_US
dc.description.abstractAs defects frequently govern the properties of crystalline solids, the precise microscopic knowledge of defect atomic structure is of fundamental importance. We report a new class of point defects in single-layer transition metal dichalcogenides that can be created through 60 degrees rotations of metal-chalcogen bonds in the trigonal prismatic lattice, with the simplest among them being a three-fold symmetric trefoil-like defect. The defects, which are inherently related to the crystal symmetry of transition metal dichalcogenides, can expand through sequential bond rotations, as evident from in situ scanning transmission electron microscopy experiments, and eventually form larger linear defects consisting of aligned 8-5-5-8 membered rings. First-principles calculations provide insights into the evolution of rotational defects and show that they give rise to p-type doping and local magnetic moments, but weakly affect mechanical characteristics of transition metal dichalcogenides. Thus, controllable introduction of rotational defects can be used to engineer the properties of these materials.en
dc.description.versionPeer revieweden
dc.format.extent6
dc.format.extent1-6
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationLin, Y-C, Björkman, T, Komsa, H-P, Teng, P-Y, Yeh, C-H, Huang, F-S, Lin, K-H, Jadczak, J, Huang, Y-S, Chiu, P-W, Krasheninnikov, A V & Suenaga, K 2015, ' Three-fold rotational defects in two-dimensional transition metal dichalcogenides ', Nature Communications, vol. 6, 6736, pp. 1-6 . https://doi.org/10.1038/ncomms7736en
dc.identifier.doi10.1038/ncomms7736en_US
dc.identifier.issn2041-1723
dc.identifier.otherPURE UUID: 25b539ea-72f7-4ced-b96d-519a95073be9en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/25b539ea-72f7-4ced-b96d-519a95073be9en_US
dc.identifier.otherPURE LINK: http://www.nature.com/ncomms/2015/150402/ncomms7736/full/ncomms7736.htmlen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/12956094/ncomms7736.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/25465
dc.identifier.urnURN:NBN:fi:aalto-201705113849
dc.language.isoenen
dc.relation.ispartofseriesNATURE COMMUNICATIONSen
dc.relation.ispartofseriesVolume 6en
dc.rightsopenAccessen
dc.subject.keywordMONOLAYER MOLYBDENUM-DISULFIDEen_US
dc.subject.keywordHEXAGONAL BORON-NITRIDEen_US
dc.subject.keywordGRAIN-BOUNDARIESen_US
dc.subject.keywordGRAPHENEen_US
dc.subject.keywordMECHANISMen_US
dc.subject.keywordLAYERSen_US
dc.titleThree-fold rotational defects in two-dimensional transition metal dichalcogenidesen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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