Temperature dependence of band gaps in sputtered SnSe thin films

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dc.authorid0000-0001-5409-6528
dc.contributor.authorDelice, Serdar
dc.contributor.authorIşık, Mehmet
dc.contributor.authorGüllü, Hasan Hüseyin
dc.contributor.authorTerlemezoğlu, Makbule
dc.contributor.authorBayraklı Sürücü, Özge
dc.contributor.authorParlak, Mehmet
dc.contributor.authorGasanly, Nizami Mamed
dc.date.accessioned2019-05-10T09:39:02Z
dc.date.available2019-05-10T09:39:02Z
dc.date.issued2019
dc.departmentHitit Üniversitesi, Fen Edebiyat Fakültesi, Fizik Bölümü
dc.description.abstractTemperature-dependent transmission experiments were performed for tin selenide (SnSe) thin films deposited by rf magnetron sputtering method in between 10 and 300 K and in the wavelength region of 400–1000 nm. Transmission spectra exhibited sharp decrease near the absorption edge around 900 nm. The transmittance spectra were analyzed using Tauc relation and first derivative spectroscopy techniques to get band gap energy of the SnSe thin films. Both of the applied methods resulted in existence of two band gaps with energies around 1.34 and 1.56 eV. The origin of these band gaps was investigated and it was assigned to the splitting of valence band into two bands due to spin-orbit interaction. Alteration of these band gap values due to varying sample temperature of the thin films were also explored in the study. It was seen that the gap energy values increased almost linearly with decreasing temperature as expected according to theoretical knowledge. © 2019 Elsevier Ltd
dc.identifier.citationDelice, S., Isik, M., Gullu, H. H., Terlemezoglu, M., Surucu, O. B., Parlak, M., & Gasanly, N. M. (2019). Temperature dependence of band gaps in sputtered SnSe thin films. Journal of Physics and Chemistry of Solids, 131, 22-26.
dc.identifier.doi10.1016/j.jpcs.2019.03.004
dc.identifier.endpage26en_US
dc.identifier.issn0022-3697
dc.identifier.scopusqualityQ1
dc.identifier.startpage22en_US
dc.identifier.urihttps://doi.org/10.1016/j.jpcs.2019.03.004
dc.identifier.urihttps://hdl.handle.net/11491/591
dc.identifier.volume131en_US
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Ltd
dc.relation.ispartofJournal of Physics and Chemistry of Solids
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectOptical Propertiesen_US
dc.subjectSnSeen_US
dc.subjectThin Filmen_US
dc.titleTemperature dependence of band gaps in sputtered SnSe thin films
dc.typeArticle

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