Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/11388
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dc.contributor.authorÜnlütürk, Seçil Sevim-
dc.contributor.authorAkdoğan, Yaşar-
dc.contributor.authorÖzçelik, Serdar-
dc.date.accessioned2021-11-06T09:48:28Z-
dc.date.available2021-11-06T09:48:28Z-
dc.date.issued2021-
dc.identifier.issn0957-4484-
dc.identifier.issn1361-6528-
dc.identifier.urihttps://doi.org/10.1088/1361-6528/abdb65-
dc.identifier.urihttps://hdl.handle.net/11147/11388-
dc.description.abstractA facile synthesis method is introduced how to prepare magnetically active ultraviolet emitting manganese ions incorporated into ZnSxSe1-x colloidal quantum dot (nanoalloy) at 110 degrees C in aqueous solutions. The reaction time is the main factor to control the hydrodynamic size from 3 to 10 nm and the precursor ratio is significant to tune the alloy composition. ZnS shell layer on the ZnSxSe1-x core was grown to passivate environmental effects. The nanoalloy has ultraviolet emission at 380 nm having a lifetime of 80 ns and 7% quantum yield. The incorporation of Mn2+ ions into the nanoalloys induced magnetic activity but did not modify the structure and photophysical properties of the nanoalloys. Colloidal and powdery samples were prepared and analyzed by electron paramagnetic resonance (EPR) spectroscopy. In the colloidal dispersions, EPR spectra showed hyperfine line splitting regardless of the Mn2+ ion fractions, up to 6%, indicating that Mn2+ ions incorporated into the nanoalloys were isolated. EPR signals of the powdery samples were broadened when the fraction of Mn2+ ions was higher than 0.1%. The EPR spectra were simulated to reveal the locations and interactions of Mn2+ ions. The simulations suggest that the Mn2+ ions are located on the nanoalloy surfaces. These findings infer that the magnetic dipolar interactions are regulated by the initial mole ratio of Mn/Zn and the physical state of the nanoalloys adjusted by preparation methods.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [115F616]; TUBITAKTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK)en_US
dc.description.sponsorshipThis work was partially supported by a grant (115F616) from the Scientific and Technological Research Council of Turkey (TUBITAK). SSu thanks to TUBITAK for the Ph.D. scholarship. We thank Prof Hasan Sahin and Dr. Cihan Bacaksz for fruitful discussion regarding 3D model construction.en_US
dc.language.isoenen_US
dc.publisherIOP Publishingen_US
dc.relation.ispartofNanotechnologyen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectColloidal quantum dotsen_US
dc.subjectManganese ion dopingen_US
dc.subjectZnSSe nanoalloyen_US
dc.titleMn2+ ions incorporated into ZnSxSe1-x colloidal quantum dots: controlling size and composition of nanoalloys and regulating magnetic dipolar interactionsen_US
dc.typeArticleen_US
dc.authorid0000-0001-8300-3837-
dc.authorid0000-0003-2029-0108-
dc.departmentİzmir Institute of Technology. Chemistryen_US
dc.departmentİzmir Institute of Technology. Materials Science and Engineeringen_US
dc.identifier.volume32en_US
dc.identifier.issue16en_US
dc.identifier.wosWOS:000614072900001en_US
dc.identifier.scopus2-s2.0-85101344994en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.doi10.1088/1361-6528/abdb65-
dc.identifier.pmid33533335en_US
dc.authorwosidSEVIM UNLUTURK, Secil/Y-1210-2018-
dc.authorwosidOzcelik, Serdar/S-4518-2016-
dc.identifier.wosqualityQ2-
dc.identifier.scopusqualityQ1-
item.grantfulltextnone-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextNo Fulltext-
item.languageiso639-1en-
item.openairetypeArticle-
item.cerifentitytypePublications-
crisitem.author.dept03.09. Department of Materials Science and Engineering-
crisitem.author.dept04.01. Department of Chemistry-
Appears in Collections:Chemistry / Kimya
Materials Science and Engineering / Malzeme Bilimi ve Mühendisliği
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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