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dc.contributor.authorKong, Wilson
dc.contributor.authorBacaksız, Cihan
dc.contributor.authorChen, Bin
dc.contributor.authorWu, Kedi
dc.contributor.authorBlei, Mark
dc.contributor.authorFan, Xi
dc.contributor.authorShen, Yuxia
dc.contributor.authorŞahin, Hasan
dc.contributor.authorWright, David
dc.contributor.authorNarang, Deepa S.
dc.contributor.authorTongay, Sefaattin
dc.date.accessioned2017-10-16T13:44:00Z
dc.date.available2017-10-16T13:44:00Z
dc.date.issued2017-03
dc.identifier.citationKong, W., Bacaksız, C., Chen, B., Wu, K., Blei, M., Fan, X., Shen, Y., ...Tongay, S. (2017). Angle resolved vibrational properties of anisotropic transition metal trichalcogenide nanosheets. Nanoscale, 9(12), 4175-4182. doi:10.1039/c7nr00711fen_US
dc.identifier.issn2040-3364
dc.identifier.urihttp://doi.org/10.1039/c7nr00711f
dc.identifier.urihttp://hdl.handle.net/11147/6365
dc.description.abstractLayered transition metal trichalcogenides (TMTCs) are a new class of anisotropic two-dimensional materials that exhibit quasi-1D behavior. This property stems from their unique highly anisotropic crystal structure where vastly different material properties can be attained from different crystal directions. Here, we employ density functional theory predictions, atomic force microscopy, and angle-resolved Raman spectroscopy to investigate their fundamental vibrational properties which differ significantly from other 2D systems and to establish a method in identifying anisotropy direction of different types of TMTCs. We find that the intensity of certain Raman peaks of TiS3, ZrS3, and HfS3 have strong polarization dependence in such a way that intensity is at its maximum when the polarization direction is parallel to the anisotropic b-axis. This allows us to readily identify the Raman peaks that are representative of the vibrations along the b-axis direction. Interestingly, similar angle resolved studies on the novel TiNbS3 TMTC alloy reveal that determination of anisotropy/crystalline direction is rather difficult possibly due to loss of anisotropy by randomization distribution of quasi-1D MX6 chains by the presence of defects which are commonly found in 2D alloys and also due to the complex Raman tensor of TMTC alloys. Overall, the experimental and theoretical results establish non-destructive methods used to identify the direction of anisotropy in TMTCs and reveal their vibrational characteristics which are necessary to gain insight into potential applications that utilize direction dependent thermal response, optical polarization, and linear dichroism.en_US
dc.description.sponsorshipNational Science Foundation (DMR-1552220--CMMI-1561839); Scientific and Technological Research Council of Turkey (TUBITAK 114F397-- 116C073); The Science Academy, Turkey under the BAGEP programen_US
dc.language.isoengen_US
dc.publisherRoyal Society of Chemistryen_US
dc.relationinfo:eu-repo/grantAgreement/TUBITAK/MFAG/114F397en_US
dc.relationinfo:eu-repo/grantAgreement/TUBITAK/BIDEB/116C073en_US
dc.relation.isversionof10.1039/c7nr00711fen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectAnisotropyen_US
dc.subjectTransition metalsen_US
dc.subjectPolarizationen_US
dc.titleAngle resolved vibrational properties of anisotropic transition metal trichalcogenide nanosheetsen_US
dc.typearticleen_US
dc.contributor.authorIDTR216960en_US
dc.contributor.iztechauthorBacaksız, Cihan
dc.contributor.iztechauthorŞahin, Hasan
dc.relation.journalNanoscaleen_US
dc.contributor.departmentIzmir Institute of Technology. Photonicsen_US
dc.contributor.departmentIzmir Institute of Technology. Physicsen_US
dc.identifier.volume9en_US
dc.identifier.issue12en_US
dc.identifier.startpage4175en_US
dc.identifier.endpage4182en_US
dc.identifier.wosWOS:000397966400016
dc.identifier.scopusSCOPUS:2-s2.0-85016125722
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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