Annealing and Doping Concentration Effects on Y2O3: Sm3+ Nanopowder Obtained by Self-Propagation Room Temperature Reaction
Апстракт
In this report, structure, morphology and luminescence of Y2O3:Sm3+ nanoparticles prepared by self-propagating room temperature reaction are presented. This new, simple and cost effective synthesis allows obtaining desired phase composition by mixing appropriate amounts of yttrium and samarium nitrates together with sodium hydroxide. A set of samples is prepared with different Sm3+ concentrations (0.1, 0.2, 0.5, 1 and 2 at %) in order to observe changes of luminescence properties. Also, effects of post synthesis annealing at several temperatures (600 degrees C, 800 degrees C and 1100 degrees C) are analyzed. For all samples X-ray diffraction showed that powders have cubic bixbyite structure (I alpha-3), and TEM analysis showed particles of less than 100 nm. Luminescence emission spectra clearly show peaks characteristic for electronic spin-forbidden transition of Sm3+ ions (4)G(5/2)- GT H-6(5/2), H-6(7/2) and H-6(9/2) centered at 578, 607 and 654 nm, respectively. Emission lifetime val...ues decrease with Sm3+ ion concentration increment, from 1.94 ms for 0.1 at% to 0.97 ms for 2 at%. In addition, enlargement of lifetime value is observed when thermal treatment is done at the highest temperature due to the elimination of luminescence quenching species from the surface of particles.
Кључне речи:
Luminescence / Y2O3 / Sm3+ / Self-propagating room temperatureИзвор:
Science of Sintering, 2013, 45, 3, 323-329Финансирање / пројекти:
- Материјали редуковане димензионалности за ефикасну апсорпцију светлости и конверзију енергије (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45020)
- Физика аморфних и наноструктурних материјала (RS-MESTD-Basic Research (BR or ON)-171022)
DOI: 10.2298/SOS1303323C
ISSN: 0350-820X
WoS: 000339449200009
Scopus: 2-s2.0-84893394692
Колекције
Институција/група
VinčaTY - JOUR AU - Ćulubrk, Sanja AU - Lojpur, Vesna AU - Đorđević, Vesna R. AU - Dramićanin, Miroslav PY - 2013 UR - https://vinar.vin.bg.ac.rs/handle/123456789/6080 AB - In this report, structure, morphology and luminescence of Y2O3:Sm3+ nanoparticles prepared by self-propagating room temperature reaction are presented. This new, simple and cost effective synthesis allows obtaining desired phase composition by mixing appropriate amounts of yttrium and samarium nitrates together with sodium hydroxide. A set of samples is prepared with different Sm3+ concentrations (0.1, 0.2, 0.5, 1 and 2 at %) in order to observe changes of luminescence properties. Also, effects of post synthesis annealing at several temperatures (600 degrees C, 800 degrees C and 1100 degrees C) are analyzed. For all samples X-ray diffraction showed that powders have cubic bixbyite structure (I alpha-3), and TEM analysis showed particles of less than 100 nm. Luminescence emission spectra clearly show peaks characteristic for electronic spin-forbidden transition of Sm3+ ions (4)G(5/2)- GT H-6(5/2), H-6(7/2) and H-6(9/2) centered at 578, 607 and 654 nm, respectively. Emission lifetime values decrease with Sm3+ ion concentration increment, from 1.94 ms for 0.1 at% to 0.97 ms for 2 at%. In addition, enlargement of lifetime value is observed when thermal treatment is done at the highest temperature due to the elimination of luminescence quenching species from the surface of particles. T2 - Science of Sintering T1 - Annealing and Doping Concentration Effects on Y2O3: Sm3+ Nanopowder Obtained by Self-Propagation Room Temperature Reaction VL - 45 IS - 3 SP - 323 EP - 329 DO - 10.2298/SOS1303323C ER -
@article{ author = "Ćulubrk, Sanja and Lojpur, Vesna and Đorđević, Vesna R. and Dramićanin, Miroslav", year = "2013", abstract = "In this report, structure, morphology and luminescence of Y2O3:Sm3+ nanoparticles prepared by self-propagating room temperature reaction are presented. This new, simple and cost effective synthesis allows obtaining desired phase composition by mixing appropriate amounts of yttrium and samarium nitrates together with sodium hydroxide. A set of samples is prepared with different Sm3+ concentrations (0.1, 0.2, 0.5, 1 and 2 at %) in order to observe changes of luminescence properties. Also, effects of post synthesis annealing at several temperatures (600 degrees C, 800 degrees C and 1100 degrees C) are analyzed. For all samples X-ray diffraction showed that powders have cubic bixbyite structure (I alpha-3), and TEM analysis showed particles of less than 100 nm. Luminescence emission spectra clearly show peaks characteristic for electronic spin-forbidden transition of Sm3+ ions (4)G(5/2)- GT H-6(5/2), H-6(7/2) and H-6(9/2) centered at 578, 607 and 654 nm, respectively. Emission lifetime values decrease with Sm3+ ion concentration increment, from 1.94 ms for 0.1 at% to 0.97 ms for 2 at%. In addition, enlargement of lifetime value is observed when thermal treatment is done at the highest temperature due to the elimination of luminescence quenching species from the surface of particles.", journal = "Science of Sintering", title = "Annealing and Doping Concentration Effects on Y2O3: Sm3+ Nanopowder Obtained by Self-Propagation Room Temperature Reaction", volume = "45", number = "3", pages = "323-329", doi = "10.2298/SOS1303323C" }
Ćulubrk, S., Lojpur, V., Đorđević, V. R.,& Dramićanin, M.. (2013). Annealing and Doping Concentration Effects on Y2O3: Sm3+ Nanopowder Obtained by Self-Propagation Room Temperature Reaction. in Science of Sintering, 45(3), 323-329. https://doi.org/10.2298/SOS1303323C
Ćulubrk S, Lojpur V, Đorđević VR, Dramićanin M. Annealing and Doping Concentration Effects on Y2O3: Sm3+ Nanopowder Obtained by Self-Propagation Room Temperature Reaction. in Science of Sintering. 2013;45(3):323-329. doi:10.2298/SOS1303323C .
Ćulubrk, Sanja, Lojpur, Vesna, Đorđević, Vesna R., Dramićanin, Miroslav, "Annealing and Doping Concentration Effects on Y2O3: Sm3+ Nanopowder Obtained by Self-Propagation Room Temperature Reaction" in Science of Sintering, 45, no. 3 (2013):323-329, https://doi.org/10.2298/SOS1303323C . .