High photoresponse of individual WS2 nanowire-nanoflake hybrid materials

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dc.citation.articleNumber233103
dc.citation.issueNumber23
dc.citation.journalTitleApplied Physics Letters
dc.citation.volumeNumber112
dc.contributor.authorAsres, Georgies Alene
dc.contributor.authorJärvinen, Topias
dc.contributor.authorLorite, Gabriela S.
dc.contributor.authorMohl, Melinda
dc.contributor.authorPitkänen, Olli
dc.contributor.authorDombovari, Aron
dc.contributor.authorTóth, Geza
dc.contributor.authorSpetz, Anita Lloyd
dc.contributor.authorVajtai, Robert
dc.contributor.authorAjayan, Pulickel M.
dc.contributor.authorLei, Sidong
dc.contributor.authorTalapatra, Saikat
dc.contributor.authorKordas, Krisztian
dc.date.accessioned2019-01-18T17:51:31Z
dc.date.available2019-01-18T17:51:31Z
dc.date.issued2018
dc.description.abstractvan der Waals solids have been recognized as highly photosensitive materials that compete conventional Si and compound semiconductor based devices. While 2-dimensional nanosheets of single and multiple layers and 1-dimensional nanowires of molybdenum and tungsten chalcogenides have been studied, their nanostructured derivatives with complex morphologies are not explored yet. Here, we report on the electrical and photosensitive properties of WS2 nanowire-nanoflake hybrid materials we developed lately. We probe individual hybrid nanostructured particles along the structure using focused ion beam deposited Pt contacts. Further, we use conductive atomic force microscopy to analyze electrical behavior across the nanostructure in the transverse direction. The electrical measurements are complemented by in situ laser beam illumination to explore the photoresponse of the nanohybrids in the visible optical spectrum. Photodetectors with responsivity up to ∼0.4 AW−1 are demonstrated outperforming graphene as well as most of the other transition metal dichalcogenide based devices.
dc.identifier.citationAsres, Georgies Alene, Järvinen, Topias, Lorite, Gabriela S., et al.. "High photoresponse of individual WS2 nanowire-nanoflake hybrid materials." <i>Applied Physics Letters,</i> 112, no. 23 (2018) AIP Publishing LLC: https://doi.org/10.1063/1.5030490.
dc.identifier.doihttps://doi.org/10.1063/1.5030490
dc.identifier.urihttps://hdl.handle.net/1911/105111
dc.language.isoeng
dc.publisherAIP Publishing LLC
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
dc.titleHigh photoresponse of individual WS2 nanowire-nanoflake hybrid materials
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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