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dc.creatorLojpur, Vesna
dc.creatorNikolić, M.
dc.creatorMančić, Lidija
dc.creatorDramićanin, Miroslav
dc.creatorMilošević, Olivera
dc.date.accessioned2017-06-10T15:45:07Z
dc.date.issued2012
dc.identifier.isbn9788673061160
dc.identifier.urihttp://dais.sanu.ac.rs/123456789/508
dc.description.abstractOver the past years, Rare Earth (RE3+) ions doped materials have been attracted a great deal of interest due to the potential application for optical temperature sensors. Luminescence properties of these materials are sensitive and changeable with temperature. Here, we have investigated yttrium oxide doped with Yb3+ and Er3+ that was synthesized through spray pyrolysis method at 900 °C and afterwards additionally thermally treated at 1100 °C for either 12, 24 or 48h. Structural and morphological characterizations were done through X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM). The obtained particles were spherical in shape and crystallized in cubic bixbyte structure with space group Ia-3. Photoluminescent measurements (PL) were recorded using the 978 nm exciting wavelength as a function of temperature in the range from 10 K to 300 K. Emission spectra are assigned to the following trivalent erbium f-f electronic transitions: 2H9/2→4I15/2 (blue: 407-420 nm), (2H11/2, 4S3/2) → 4I15/2 (green: 510-590 nm), and 4F9/2→4I15/2 (red: 640-720 nm). The fluorescent intensity ratio of the blue, green and red areas under emission bands was also examined and showed significant temperature sensitivity, with the largest value of 2.7 K-1.en
dc.format(2012) 153-153
dc.formatapplication/pdf
dc.languageen
dc.publisherBelgrade : Agencija FORMAT
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172035/RS//
dc.rightsopenAccess
dc.sourceICOM 2012: The 3rd International Conference on the Physics of Optical Materials and Devices: Book of Abstracten
dc.subjectrare earths
dc.subjectluminescence
dc.subjectspray pyrolysis
dc.subjectscanning electron microscopy
dc.subjectX-ray powder diffraction
dc.titleLow temperature effects on up-conversion emission of Er3+/Yb3+ co-doped Y2O3en
dc.typeconferenceObject
dc.rights.licenseBY-NC-ND
dcterms.abstractЛојпур, Весна; Драмићанин, Мирослав; Милошевић, Оливера; Манчић, Лидија; Николић, М.;
dc.citation.spage153
dc.citation.epage153
dc.type.versionpublishedVersion
dc.identifier.fulltexthttp://dais.sanu.ac.rs/bitstream/id/21496/505.pdf


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