Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/9541
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dc.contributor.authorSreepal, Vishnu-
dc.contributor.authorYağmurcukardeş, Mehmet-
dc.contributor.authorVasu, Kalangi S.-
dc.contributor.authorKelly, Daniel J.-
dc.contributor.authorTaylor, Sarah F. R.-
dc.contributor.authorŞahin, Hasan-
dc.contributor.authorKravets, Vasyl G.-
dc.contributor.authorNair, Rahul R.-
dc.date.accessioned2020-07-25T22:16:53Z-
dc.date.available2020-07-25T22:16:53Z-
dc.date.issued2019-
dc.identifier.issn1530-6984-
dc.identifier.issn1530-6992-
dc.identifier.urihttps://doi.org/10.1021/acs.nanolett.9b02700-
dc.identifier.urihttps://hdl.handle.net/11147/9541-
dc.description.abstractMost of the studied two-dimensional (2D) materials have been obtained by exfoliation of van der Waals crystals. Recently, there has been growing interest in fabricating synthetic 2D crystals which have no layered bulk analogues. These efforts have been focused mainly on the surface growth of molecules in high vacuum. Here, we report an approach to making 2D crystals of covalent solids by chemical conversion of van der Waals layers. As an example, we used 2D indium selenide (InSe) obtained by exfoliation and converted it by direct fluorination into indium fluoride (InF3), which has a nonlayered, rhombohedral structure and therefore cannot possibly be obtained by exfoliation. The conversion of InSe into InF3 is found to be feasible for thicknesses down to three layers of InSe, and the obtained stable InF3 layers are doped with selenium. We study this new 2D material by optical, electron transport, and Raman measurements and show that it is a semiconductor with a direct bandgap of 2.2 eV, exhibiting high optical transparency across the visible and infrared spectral ranges. We also demonstrate the scalability of our approach by chemical conversion of large-area, thin InSe laminates obtained by liquid exfoliation, into InF3 films. The concept of chemical conversion of cleavable thin van der Waals crystals into covalently bonded noncleavable ones opens exciting prospects for synthesizing a wide variety of novel atomically thin covalent crystals.en_US
dc.language.isoenen_US
dc.publisherAmerican Chemical Societyen_US
dc.relation.ispartofNano Lettersen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectIndium selenideen_US
dc.subjectFluorinationen_US
dc.subjectIndium fluorideen_US
dc.subject2D covalent crystalen_US
dc.subjectvan der Waals materialsen_US
dc.titleTwo-dimensional covalent crystals by chemical conversion of thin van der Waals materialsen_US
dc.typeArticleen_US
dc.institutionauthorŞahin, Hasan-
dc.departmentİzmir Institute of Technology. Photonicsen_US
dc.identifier.volume19en_US
dc.identifier.issue9en_US
dc.identifier.startpage6475en_US
dc.identifier.endpage6481en_US
dc.identifier.wosWOS:000486361900083en_US
dc.identifier.scopus2-s2.0-85072134276en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.doi10.1021/acs.nanolett.9b02700-
dc.identifier.pmid31426634en_US
dc.relation.doi10.1021/acs.nanolett.9b02700en_US
dc.coverage.doi10.1021/acs.nanolett.9b02700en_US
local.message.claim2022-06-09T15:17:23.452+0300|||rp00609|||submit_approve|||dc_contributor_author|||None*
dc.identifier.wosqualityQ1-
dc.identifier.scopusqualityQ1-
item.openairetypeArticle-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
item.languageiso639-1en-
item.cerifentitytypePublications-
item.grantfulltextopen-
crisitem.author.dept04.04. Department of Photonics-
crisitem.author.dept04.04. Department of Photonics-
Appears in Collections:Photonics / Fotonik
PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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