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Dual-emission luminescence thermometry using LaGaO3:Cr3+, Nd3+ phosphors
dc.creator | Mullins, Abbi L. | |
dc.creator | Ćirić, Aleksandar | |
dc.creator | Zeković, Ivana Lj. | |
dc.creator | Williams, J. A. Gareth | |
dc.creator | Dramićanin, Miroslav | |
dc.creator | Radosavjević Evans, Ivana | |
dc.date.accessioned | 2022-07-25T09:39:30Z | |
dc.date.available | 2022-07-25T09:39:30Z | |
dc.date.issued | 2022 | |
dc.identifier.issn | 2050-7534 | |
dc.identifier.uri | https://vinar.vin.bg.ac.rs/handle/123456789/10362 | |
dc.description.abstract | A series of La1−xGa0.99O3:Cr0.01, Ndx phosphors (where x = 0.005, 0.01, 0.02) for luminescence thermometry was synthesised by the solid-state method, structurally characterised using powder X-ray diffraction data, and investigated by ambient and variable-temperature optical measurements. The design principle relies on the use of a combination of transition metal and rare earth activator ions such that the excitation and emission wavelengths fall within the near infra-red spectral region, notably in the ‘first biological window’ that is attractive for potential in vivo applications. The photoluminescence spectra of the compounds feature the characteristic 2E phosphorescence of Cr3+ at 729 nm and the 4F3/2 → 4I9/2 emission of Nd3+ around 890 nm. The Nd3+ emission is quenched at a higher rate than that of Cr3+ with increasing temperature. Thermometric analysis by monitoring the luminescence intensity ratio (LIR) between the emissions of Cr3+ and Nd3+ from 300 K to 650 K shows a quasi-Boltzmann trend, with a maximum relative sensitivity of ∼2% K−1, high absolute sensitivity values over this entire temperature range, excellent temperature resolution of 0.04 K at room temperature, and high stability. | en |
dc.language | en | |
dc.relation | NATO [Grant No. SPS.MYP G5751] | |
dc.relation | Ministry of Education, Science and Technological Development of the Republic of Serbia | |
dc.rights | openAccess | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc/4.0/ | |
dc.source | Journal of Materials Chemistry C | |
dc.title | Dual-emission luminescence thermometry using LaGaO3:Cr3+, Nd3+ phosphors | en |
dc.type | article | en |
dc.rights.license | BY-NC | |
dc.citation.volume | 10 | |
dc.citation.issue | 28 | |
dc.citation.spage | 10396 | |
dc.citation.epage | 10403 | |
dc.identifier.wos | 000822078600001 | |
dc.identifier.doi | 10.1039/D2TC02011D | |
dc.type.version | publishedVersion | |
dc.identifier.scopus | 2-s2.0-85133978004 | |
dc.identifier.fulltext | http://vinar.vin.bg.ac.rs/bitstream/id/26720/36253AM.pdf |
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