Achieving Efficient Red-Emitting Sr(2)Ca(1-delta)Ln(delta)WO(6):Mn4+ (Ln = La, Gd, Y, Lu, delta = 0.10) Phosphors with Extraordinary Luminescence Thermal Stability for Potential UV-LEDs Application via Facile Ion Substitution in Luminescence-Ignorable Sr2
Samo za registrovane korisnike
2020
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
In this work, we adopt a facile rare earth ions Ln(3+) (Ln = La, Gd, Y, Lu) substitution strategy to achieve the efficient red luminescence Sr(2)Ca(1-delta)Ln(delta)WO(6):Mn4+ (delta = 0.10), which extremely improves the luminescence properties of luminescence-ignorable Sr2CaWO6:Mn4+. It is demonstrated that the substitution of Ln(3+) for Ca2+ can stabilize the Mn in tetravalent state, which would like to occupy W6+ site and generate the luminescence. It is also found that the emission profile of original Sr2CaWO6:Mn4+ changes manifestly after different Ln(3+) ions substitution, which is mainly attributed to the synergistic effect of lattice distortion, Mn4+ transition E-2(g) -> (4)A(2g) and lattice vibration. Most fascinatingly, the Sr(2)Ca(0.9)Ln(0.1)WO(6):0.005Mn(4+) (SC(0.9)Ln(0.1)WO:0.005Mn(4+), Ln = La, Gd) show extraordinary luminescence thermal stability, whose integrated emission intensity still maintains about 95% (Gd, 96.8%; La, 94.8%) at 478 K of its original value at room ...temperature (298 K), much better than those in most reported M4+-activated oxide phosphors so far. It is confirmed that the traps may play an important role for this phenomenon. Best of all, this work gives us a facile strategy to achieve efficient Mn4+-activated red-emitting materials with extraordinary luminescence thermal stabilities derived from luminescence-ignorable ones.
Izvor:
ACS Materials Letters, 2020, 2, 7, 771-778Finansiranje / projekti:
- Ghent University's Special Research Fund (BOF) [BOF16/PDO/159]
DOI: 10.1021/acsmaterialslett.0c00212
ISSN: 2639-4979
WoS: 000548457500014
Scopus: 2-s2.0-85088043117
Institucija/grupa
Institut za opštu i fizičku hemijuTY - JOUR AU - Li, Kai AU - Du, Jiaren AU - Poelman, Dirk AU - Vrielinck, Henk AU - Mara, Dimitrije AU - Van Deun, Rik PY - 2020 UR - https://riofh.iofh.bg.ac.rs/handle/123456789/733 AB - In this work, we adopt a facile rare earth ions Ln(3+) (Ln = La, Gd, Y, Lu) substitution strategy to achieve the efficient red luminescence Sr(2)Ca(1-delta)Ln(delta)WO(6):Mn4+ (delta = 0.10), which extremely improves the luminescence properties of luminescence-ignorable Sr2CaWO6:Mn4+. It is demonstrated that the substitution of Ln(3+) for Ca2+ can stabilize the Mn in tetravalent state, which would like to occupy W6+ site and generate the luminescence. It is also found that the emission profile of original Sr2CaWO6:Mn4+ changes manifestly after different Ln(3+) ions substitution, which is mainly attributed to the synergistic effect of lattice distortion, Mn4+ transition E-2(g) -> (4)A(2g) and lattice vibration. Most fascinatingly, the Sr(2)Ca(0.9)Ln(0.1)WO(6):0.005Mn(4+) (SC(0.9)Ln(0.1)WO:0.005Mn(4+), Ln = La, Gd) show extraordinary luminescence thermal stability, whose integrated emission intensity still maintains about 95% (Gd, 96.8%; La, 94.8%) at 478 K of its original value at room temperature (298 K), much better than those in most reported M4+-activated oxide phosphors so far. It is confirmed that the traps may play an important role for this phenomenon. Best of all, this work gives us a facile strategy to achieve efficient Mn4+-activated red-emitting materials with extraordinary luminescence thermal stabilities derived from luminescence-ignorable ones. T2 - ACS Materials Letters T1 - Achieving Efficient Red-Emitting Sr(2)Ca(1-delta)Ln(delta)WO(6):Mn4+ (Ln = La, Gd, Y, Lu, delta = 0.10) Phosphors with Extraordinary Luminescence Thermal Stability for Potential UV-LEDs Application via Facile Ion Substitution in Luminescence-Ignorable Sr2 EP - 778 IS - 7 SP - 771 VL - 2 DO - 10.1021/acsmaterialslett.0c00212 UR - conv_852 ER -
@article{ author = "Li, Kai and Du, Jiaren and Poelman, Dirk and Vrielinck, Henk and Mara, Dimitrije and Van Deun, Rik", year = "2020", abstract = "In this work, we adopt a facile rare earth ions Ln(3+) (Ln = La, Gd, Y, Lu) substitution strategy to achieve the efficient red luminescence Sr(2)Ca(1-delta)Ln(delta)WO(6):Mn4+ (delta = 0.10), which extremely improves the luminescence properties of luminescence-ignorable Sr2CaWO6:Mn4+. It is demonstrated that the substitution of Ln(3+) for Ca2+ can stabilize the Mn in tetravalent state, which would like to occupy W6+ site and generate the luminescence. It is also found that the emission profile of original Sr2CaWO6:Mn4+ changes manifestly after different Ln(3+) ions substitution, which is mainly attributed to the synergistic effect of lattice distortion, Mn4+ transition E-2(g) -> (4)A(2g) and lattice vibration. Most fascinatingly, the Sr(2)Ca(0.9)Ln(0.1)WO(6):0.005Mn(4+) (SC(0.9)Ln(0.1)WO:0.005Mn(4+), Ln = La, Gd) show extraordinary luminescence thermal stability, whose integrated emission intensity still maintains about 95% (Gd, 96.8%; La, 94.8%) at 478 K of its original value at room temperature (298 K), much better than those in most reported M4+-activated oxide phosphors so far. It is confirmed that the traps may play an important role for this phenomenon. Best of all, this work gives us a facile strategy to achieve efficient Mn4+-activated red-emitting materials with extraordinary luminescence thermal stabilities derived from luminescence-ignorable ones.", journal = "ACS Materials Letters", title = "Achieving Efficient Red-Emitting Sr(2)Ca(1-delta)Ln(delta)WO(6):Mn4+ (Ln = La, Gd, Y, Lu, delta = 0.10) Phosphors with Extraordinary Luminescence Thermal Stability for Potential UV-LEDs Application via Facile Ion Substitution in Luminescence-Ignorable Sr2", pages = "778-771", number = "7", volume = "2", doi = "10.1021/acsmaterialslett.0c00212", url = "conv_852" }
Li, K., Du, J., Poelman, D., Vrielinck, H., Mara, D.,& Van Deun, R.. (2020). Achieving Efficient Red-Emitting Sr(2)Ca(1-delta)Ln(delta)WO(6):Mn4+ (Ln = La, Gd, Y, Lu, delta = 0.10) Phosphors with Extraordinary Luminescence Thermal Stability for Potential UV-LEDs Application via Facile Ion Substitution in Luminescence-Ignorable Sr2. in ACS Materials Letters, 2(7), 771-778. https://doi.org/10.1021/acsmaterialslett.0c00212 conv_852
Li K, Du J, Poelman D, Vrielinck H, Mara D, Van Deun R. Achieving Efficient Red-Emitting Sr(2)Ca(1-delta)Ln(delta)WO(6):Mn4+ (Ln = La, Gd, Y, Lu, delta = 0.10) Phosphors with Extraordinary Luminescence Thermal Stability for Potential UV-LEDs Application via Facile Ion Substitution in Luminescence-Ignorable Sr2. in ACS Materials Letters. 2020;2(7):771-778. doi:10.1021/acsmaterialslett.0c00212 conv_852 .
Li, Kai, Du, Jiaren, Poelman, Dirk, Vrielinck, Henk, Mara, Dimitrije, Van Deun, Rik, "Achieving Efficient Red-Emitting Sr(2)Ca(1-delta)Ln(delta)WO(6):Mn4+ (Ln = La, Gd, Y, Lu, delta = 0.10) Phosphors with Extraordinary Luminescence Thermal Stability for Potential UV-LEDs Application via Facile Ion Substitution in Luminescence-Ignorable Sr2" in ACS Materials Letters, 2, no. 7 (2020):771-778, https://doi.org/10.1021/acsmaterialslett.0c00212 ., conv_852 .