Influence of host lattice on luminescence properties of up-conversion Ln2MoO6 (Ln=Y, Gd) powders co-doped with Er3+/Yb3+ synthesized at high temperatures
Apstrakt
Luminescent materials emit radiation when exposed to various types of excitation (ultraviolet radiation, X-rays, electron beam, etc.) and can be comprised of a host lattice with dopant as an activator. One of the extensively investigated luminescent materials is monoclinic Ln2 MoO6 due to its high thermal stability. In this study, we investigated Ln2MoO 6 with different concentrations of Er 3+ /Yb3+ concentrations synthetized at temperatures up to 1200o C. The obtained powders were examined by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and photoluminescence spectroscopy (PL). The results revealed that all powders are single phase Ln2 MoO6 , with particle size in the nano range at lower treatment temperatures (up to 800 o C) and in the micro range at higher calcination temperatures (up to 1200 o C). Both Y 2 MoO 6 :Yb3+ /Er 3+ and Gd2 MoO 6 : Yb3+ /Er 3+ show double emitting luminescence two green emission bands at 525 and 546 nm ...(2 H 11/2 , 4 S 3/2 → 4 I 15/2 ) as well as a red emission band at 657 nm ( 4 F 9/2 → 4 I 15/2 ). It can be concluded that increase of Yb3+ concentration leads to change of the green to red ratio showing the ability for fine-tuning of the color output.
Izvor:
Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022, 2022, 62-62Izdavač:
- Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade
- Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)
Napomena:
- IMEC2022 - 1st International Conference on Innovative Materials in Extreme Conditions, 22-23 March 2022, Belgrade, Serbia
Kolekcije
Institucija/grupa
VinčaTY - CONF AU - Radmilović, Nadežda AU - Stamenković, Tijana AU - Lojpur, Vesna PY - 2022 UR - https://vinar.vin.bg.ac.rs/handle/123456789/12862 AB - Luminescent materials emit radiation when exposed to various types of excitation (ultraviolet radiation, X-rays, electron beam, etc.) and can be comprised of a host lattice with dopant as an activator. One of the extensively investigated luminescent materials is monoclinic Ln2 MoO6 due to its high thermal stability. In this study, we investigated Ln2MoO 6 with different concentrations of Er 3+ /Yb3+ concentrations synthetized at temperatures up to 1200o C. The obtained powders were examined by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and photoluminescence spectroscopy (PL). The results revealed that all powders are single phase Ln2 MoO6 , with particle size in the nano range at lower treatment temperatures (up to 800 o C) and in the micro range at higher calcination temperatures (up to 1200 o C). Both Y 2 MoO 6 :Yb3+ /Er 3+ and Gd2 MoO 6 : Yb3+ /Er 3+ show double emitting luminescence two green emission bands at 525 and 546 nm (2 H 11/2 , 4 S 3/2 → 4 I 15/2 ) as well as a red emission band at 657 nm ( 4 F 9/2 → 4 I 15/2 ). It can be concluded that increase of Yb3+ concentration leads to change of the green to red ratio showing the ability for fine-tuning of the color output. PB - Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade PB - Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME) C3 - Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022 T1 - Influence of host lattice on luminescence properties of up-conversion Ln2MoO6 (Ln=Y, Gd) powders co-doped with Er3+/Yb3+ synthesized at high temperatures SP - 62 EP - 62 UR - https://hdl.handle.net/21.15107/rcub_vinar_12862 ER -
@conference{ author = "Radmilović, Nadežda and Stamenković, Tijana and Lojpur, Vesna", year = "2022", abstract = "Luminescent materials emit radiation when exposed to various types of excitation (ultraviolet radiation, X-rays, electron beam, etc.) and can be comprised of a host lattice with dopant as an activator. One of the extensively investigated luminescent materials is monoclinic Ln2 MoO6 due to its high thermal stability. In this study, we investigated Ln2MoO 6 with different concentrations of Er 3+ /Yb3+ concentrations synthetized at temperatures up to 1200o C. The obtained powders were examined by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and photoluminescence spectroscopy (PL). The results revealed that all powders are single phase Ln2 MoO6 , with particle size in the nano range at lower treatment temperatures (up to 800 o C) and in the micro range at higher calcination temperatures (up to 1200 o C). Both Y 2 MoO 6 :Yb3+ /Er 3+ and Gd2 MoO 6 : Yb3+ /Er 3+ show double emitting luminescence two green emission bands at 525 and 546 nm (2 H 11/2 , 4 S 3/2 → 4 I 15/2 ) as well as a red emission band at 657 nm ( 4 F 9/2 → 4 I 15/2 ). It can be concluded that increase of Yb3+ concentration leads to change of the green to red ratio showing the ability for fine-tuning of the color output.", publisher = "Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade, Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)", journal = "Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022", title = "Influence of host lattice on luminescence properties of up-conversion Ln2MoO6 (Ln=Y, Gd) powders co-doped with Er3+/Yb3+ synthesized at high temperatures", pages = "62-62", url = "https://hdl.handle.net/21.15107/rcub_vinar_12862" }
Radmilović, N., Stamenković, T.,& Lojpur, V.. (2022). Influence of host lattice on luminescence properties of up-conversion Ln2MoO6 (Ln=Y, Gd) powders co-doped with Er3+/Yb3+ synthesized at high temperatures. in Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022 Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade., 62-62. https://hdl.handle.net/21.15107/rcub_vinar_12862
Radmilović N, Stamenković T, Lojpur V. Influence of host lattice on luminescence properties of up-conversion Ln2MoO6 (Ln=Y, Gd) powders co-doped with Er3+/Yb3+ synthesized at high temperatures. in Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022. 2022;:62-62. https://hdl.handle.net/21.15107/rcub_vinar_12862 .
Radmilović, Nadežda, Stamenković, Tijana, Lojpur, Vesna, "Influence of host lattice on luminescence properties of up-conversion Ln2MoO6 (Ln=Y, Gd) powders co-doped with Er3+/Yb3+ synthesized at high temperatures" in Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022 (2022):62-62, https://hdl.handle.net/21.15107/rcub_vinar_12862 .