Thickness dependence of solar cell efficiency in transition metal dichalcogenides MX2 (M: Mo, W; X: S, Se, Te)

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buir.contributor.authorÖzdemir, Burak
dc.citation.epage5en_US
dc.citation.spage1en_US
dc.citation.volumeNumber212en_US
dc.contributor.authorÖzdemir, Burak
dc.contributor.authorBarone, V.
dc.date.accessioned2021-03-05T06:37:42Z
dc.date.available2021-03-05T06:37:42Z
dc.date.issued2020
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.description.abstractBulk transition metal dichalcogenides are indirect gap semiconductors with optical gaps in the range of 0.7–1.6 eV, which makes them suitable for solar cell applications. In this work, we study the electronic structure, optical properties, and the thickness dependence of the solar cell efficiencies of MX2 (M: Mo, W; X: S, Se, Te) with density functional theory and GW + BSE. Through this analysis, we find a change in solar cell efficiency trends at slab thicknesses of 3 μm. For thin films solar cells (thicknesses smaller than 3 μm), the tellurides present the highest efficiencies (about 20% for a 100 nm thick slab). In contrast, for thicknesses greater than 3 μm, our results indicate that a maximum solar cell efficiency can be achieved in WS2. For instance, a 100 μm slab of WS2 presents a solar cell efficiency of 36.3%, making this material a promising candidate for solar cell applications.en_US
dc.description.provenanceSubmitted by Zeynep Aykut (zeynepay@bilkent.edu.tr) on 2021-03-05T06:37:42Z No. of bitstreams: 1 Thickness_dependence_of_solar_cell_efficiency_in_transition_metal_dichalcogenides_MX2.pdf: 966864 bytes, checksum: f4d5c9a196ccca02533f502496731725 (MD5)en
dc.description.provenanceMade available in DSpace on 2021-03-05T06:37:42Z (GMT). No. of bitstreams: 1 Thickness_dependence_of_solar_cell_efficiency_in_transition_metal_dichalcogenides_MX2.pdf: 966864 bytes, checksum: f4d5c9a196ccca02533f502496731725 (MD5) Previous issue date: 2020en
dc.embargo.release2022-08-01
dc.identifier.doi10.1016/j.solmat.2020.110557en_US
dc.identifier.issn0927-0248
dc.identifier.urihttp://hdl.handle.net/11693/75812
dc.language.isoEnglishen_US
dc.publisherElsevieren_US
dc.relation.isversionofhttps://dx.doi.org/10.1016/j.solmat.2020.110557en_US
dc.source.titleSolar Energy Materials and Solar Cellsen_US
dc.subjectDFTen_US
dc.subjectGW+BSEen_US
dc.subjectSolar cellen_US
dc.subjectThin filmen_US
dc.subjectFirst-principlesen_US
dc.subjectTransition metal dichalcogenidesen_US
dc.titleThickness dependence of solar cell efficiency in transition metal dichalcogenides MX2 (M: Mo, W; X: S, Se, Te)en_US
dc.typeArticleen_US

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