article.page.titleprefix
Temperature-Dependent Optical Properties of TiO2 Nanoparticles: A Study of Band Gap Evolution

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dc.contributor.authorIşık, Mehmet
dc.contributor.authorDelice, Serdar
dc.contributor.authorGasanly, Nizami Mamed
dc.date.accessioned2023-12-05T20:11:06Z
dc.date.available2023-12-05T20:11:06Z
dc.date.issued2023-10
dc.descriptionPublished by Optical and Quantum Electronics, https://doi.org/10.1007/s11082-023-05138-4, M. Isik, Department of Electrical and Electronics Engineering, Atilim University, 06836 Ankara, Turkey, S. Delice, Department of Physics, Hitit University, 19040 Çorum, Turkey, N.M. Gasanly, Department of Physics, Middle East Technical University, 06800, Ankara, Turkey, Virtual International Scientific Research Centre, Baku State University, 1148 Baku, Azerbaijan
dc.description.abstractIn this study, we present the first comprehensive investigation of the temperature-dependent band gap energy of anatase TiO2 nanoparticles, utilizing transmission measurements in the range of 10-300 K. X-ray diffraction pattern exhibited nine peaks related to tetragonal crystal structure. Scanning electron microscope image showed that the nanoparticles with the dimensions of 25-50 nm were found as micrometer sized agglomerated. When the spectrum obtained as a result of the transmission measurements was analyzed, it was seen that the band gap energy decreased from 3.29(5) to 3.26(6) eV as the temperature was increased from 10 K to 300 K. Temperature-band gap dependence was analyzed using Varshni and O'Donnell-Chen optical models and optical parameters of the TiO2 nanoparticles like absolute zero band gap energy, rate of change of band gap with temperature and average phonon energy were reported.
dc.identifier.citationhttps://doi.org/10.1007/s11082-023-05138-4
dc.identifier.issn1572-817X
dc.identifier.urihttp://hdl.handle.net/20.500.14411/1820
dc.language.isoen
dc.publisherOptical and Quantum Electronics
dc.relation.ispartofseries55
dc.subjectTiO2, nanoparticles, optical properties, band gap energy, optoelectroniceng
dc.titleTemperature-Dependent Optical Properties of TiO2 Nanoparticles: A Study of Band Gap Evolution
dc.typeArticle
dspace.entity.typeArticle

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