Electronic and optical properties of low-dimensional group-IV monochalcogenides

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dc.contributor.authorGomes, Lídia C. [UNESP]
dc.contributor.authorCarvalho, A.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionNational University of Singapore
dc.date.accessioned2021-06-25T10:35:50Z
dc.date.available2021-06-25T10:35:50Z
dc.date.issued2020-09-28
dc.description.abstractThe group-IV monochalcogenides are a set of binary materials M X composed by a group-IV element (M = Sn or Ge) and a chalcogen (X = S or Se). Strong anisotropy is one of the most interesting facets of these materials, especially in their low-dimensional form. In this Tutorial, we present some of the recent studies on the electronic and optical properties of 2D group-IV monochalcogenides, including predictions from first-principles density functional theory calculations and available experimental observations. We discuss the variation of the bandgap from bulk down to monolayer and the respective band structures, which are characterized by multiple valence and conduction band valleys, making these materials suitable for a variety of applications, including valleytronics. We also discuss the emergence of spin-orbit splitting, piezoelectricity, and ferroelectricity as a result of the polar character of the monolayers. Current predictions of carrier mobilities in monolayers and their potential application as thermoelectric materials are also presented.en
dc.description.affiliationInstituto de Física Teórica São Paulo State University (UNESP), Rua Dr. Bento Teobaldo Ferraz, 271 - Várzea da Barra Funda
dc.description.affiliationCentre for Advanced 2D Materials National University of Singapore, 6 Science Drive 2
dc.description.affiliationUnespInstituto de Física Teórica São Paulo State University (UNESP), Rua Dr. Bento Teobaldo Ferraz, 271 - Várzea da Barra Funda
dc.description.sponsorshipNational Research Foundation
dc.description.sponsorshipIdNational Research Foundation: R-144-000-295-281
dc.identifierhttp://dx.doi.org/10.1063/5.0016003
dc.identifier.citationJournal of Applied Physics, v. 128, n. 12, 2020.
dc.identifier.doi10.1063/5.0016003
dc.identifier.issn1089-7550
dc.identifier.issn0021-8979
dc.identifier.scopus2-s2.0-85092440090
dc.identifier.urihttp://hdl.handle.net/11449/206647
dc.language.isoeng
dc.relation.ispartofJournal of Applied Physics
dc.sourceScopus
dc.titleElectronic and optical properties of low-dimensional group-IV monochalcogenidesen
dc.typeArtigo
unesp.author.orcid0000-0001-7476-452X[1]

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