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Narrow-band red phosphors of high colour purity based on Eu3+-activated apatite-type Gd9.33(SiO4)6O2
dc.creator | Rodríguez-García, Melissa M. | |
dc.creator | Ćirić, Aleksandar | |
dc.creator | Ristić, Zoran | |
dc.creator | Williams, J. A. Gareth | |
dc.creator | Dramićanin, Miroslav | |
dc.creator | Radosavjević Evans, Ivana | |
dc.date.accessioned | 2021-11-08T10:53:06Z | |
dc.date.available | 2021-11-08T10:53:06Z | |
dc.date.issued | 2021 | |
dc.identifier.issn | 2050-7534 | |
dc.identifier.uri | https://vinar.vin.bg.ac.rs/handle/123456789/9846 | |
dc.description.abstract | A series of new red phosphors based on apatite-type gadolinium silicate host, Gd9.33−xEux(SiO4)6O2 (0.03 < x < 1.87), have been synthesised and analysed. The phosphors show excellent chemical and thermal stability, losing only 10% of their emission intensity at 150 °C (working LED temperature) relative to that at room temperature through the electric dipole–dipole interaction. They exhibit efficient Eu3+ narrow-band red emission (quantum yield up to 75%; full-width at half-maximum (FWHM) = 7 nm; CIE colour coordinates x = 0.65, y = 0.35) of exceptional colour purity (94.2%), and the host can be heavily doped with Eu3+ (up to 10 at%) without concentration quenching of the emission. Variable-temperature powder X-ray diffraction, photoluminescence spectroscopy and Judd–Ofelt analysis of the phosphors’ radiative properties reveal the favourable influence of the structural properties of the apatite-type host on the efficiency and thermal stability of the Eu3+-activated Gd9.33(SiO4)6O2 emission. | en |
dc.language | en | |
dc.relation | Ministry of Education, Science and Technological Development of the Republic of Serbia | |
dc.relation | CONACyT [607462, 447874] | |
dc.rights | openAccess | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc/4.0/ | |
dc.source | Journal of Materials Chemistry C | |
dc.title | Narrow-band red phosphors of high colour purity based on Eu3+-activated apatite-type Gd9.33(SiO4)6O2 | |
dc.type | article | en |
dc.rights.license | BY-NC | |
dc.citation.volume | 9 | |
dc.citation.issue | 23 | |
dc.citation.spage | 7474 | |
dc.citation.epage | 7484 | |
dc.identifier.wos | 000654455200001 | |
dc.identifier.doi | 10.1039/D1TC01330K | |
dc.type.version | publishedVersion | |
dc.identifier.scopus | 2-s2.0-85108140225 | |
dc.identifier.fulltext | https://vinar.vin.bg.ac.rs/bitstream/id/25250/Narrow_band_pub.pdf |
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