Narrow-band red phosphors of high colour purity based on Eu3+-activated apatite-type Gd9.33(SiO4)6O2
Аутори
Rodríguez-García, Melissa M.Ćirić, Aleksandar
Ristić, Zoran
Williams, J. A. Gareth
Dramićanin, Miroslav
Radosavjević Evans, Ivana
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
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 emiss...ion.
Извор:
Journal of Materials Chemistry C, 2021, 9, 23, 7474-7484Финансирање / пројекти:
- Ministry of Education, Science and Technological Development of the Republic of Serbia
- CONACyT [607462, 447874]
DOI: 10.1039/D1TC01330K
ISSN: 2050-7534
WoS: 000654455200001
Scopus: 2-s2.0-85108140225
Колекције
Институција/група
VinčaTY - JOUR AU - Rodríguez-García, Melissa M. AU - Ćirić, Aleksandar AU - Ristić, Zoran AU - Williams, J. A. Gareth AU - Dramićanin, Miroslav AU - Radosavjević Evans, Ivana PY - 2021 UR - https://vinar.vin.bg.ac.rs/handle/123456789/9846 AB - 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. T2 - Journal of Materials Chemistry C T1 - Narrow-band red phosphors of high colour purity based on Eu3+-activated apatite-type Gd9.33(SiO4)6O2 VL - 9 IS - 23 SP - 7474 EP - 7484 DO - 10.1039/D1TC01330K ER -
@article{ author = "Rodríguez-García, Melissa M. and Ćirić, Aleksandar and Ristić, Zoran and Williams, J. A. Gareth and Dramićanin, Miroslav and Radosavjević Evans, Ivana", year = "2021", 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.", journal = "Journal of Materials Chemistry C", title = "Narrow-band red phosphors of high colour purity based on Eu3+-activated apatite-type Gd9.33(SiO4)6O2", volume = "9", number = "23", pages = "7474-7484", doi = "10.1039/D1TC01330K" }
Rodríguez-García, M. M., Ćirić, A., Ristić, Z., Williams, J. A. G., Dramićanin, M.,& Radosavjević Evans, I.. (2021). Narrow-band red phosphors of high colour purity based on Eu3+-activated apatite-type Gd9.33(SiO4)6O2. in Journal of Materials Chemistry C, 9(23), 7474-7484. https://doi.org/10.1039/D1TC01330K
Rodríguez-García MM, Ćirić A, Ristić Z, Williams JAG, Dramićanin M, Radosavjević Evans I. Narrow-band red phosphors of high colour purity based on Eu3+-activated apatite-type Gd9.33(SiO4)6O2. in Journal of Materials Chemistry C. 2021;9(23):7474-7484. doi:10.1039/D1TC01330K .
Rodríguez-García, Melissa M., Ćirić, Aleksandar, Ristić, Zoran, Williams, J. A. Gareth, Dramićanin, Miroslav, Radosavjević Evans, Ivana, "Narrow-band red phosphors of high colour purity based on Eu3+-activated apatite-type Gd9.33(SiO4)6O2" in Journal of Materials Chemistry C, 9, no. 23 (2021):7474-7484, https://doi.org/10.1039/D1TC01330K . .