Effect of annealing on luminescence of Eu3+- and Sm3+-doped Mg2TiO4 nanoparticles
Samo za registrovane korisnike
2016
Autori
Medić, Mina M.Antić, Željka
Đorđević, Vesna R.
Ahrenkiel, Scott Phillip
Marinović-Cincović, Milena
Dramićanin, Miroslav
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
This work explores the influence of annealing temperature on the structure and luminescence of 2 at% Eu3+ and 1 at Sm3+-doped Mg2TiO4 nanopowders produced via Pechini-type polymerized complex route. Mg2TiO4 samples were annealed at 7 different temperatures (400 degrees C, 450 degrees C, 500 degrees C, 550 degrees C, 600 degrees C, 650 degrees C and 700 degrees C) to determine the temperature range in which cubic inverse spinel structure is stable and to follow the changes of material luminescence properties. X-ray diffraction revealed that crystallization of both Eu3+ and Sm3+-doped Mg2TiO4 nanopowders starts at 400 degrees C, and that Sm3+ doped Mg2TiO4 starts to decompose at 650 degrees C, while Eu3+ doped Mg2TiO4 starts to decompose at 700 degrees C. Samples annealed at higher temperatures show higher crystallinity and larger crystallite size. Mg2TiO4 powder annealed at 600 degrees C is composed of similar to 5 nm size nanoparticles agglomerated in micron-size and dense chunks. The ...emission spectra of nanoparticles are composed of emissions from defects in Mg2TiO4 host and characteristic emissions of Eu3+ (D-5(0) - GT F-7(J)) and Sm3+ ((4)G(5/2) - GT H-6(J)) ions. The stronger emission and longer emission decays are observed with samples annealed at high temperatures. In the case of the Eu3+ ions emission intensity increased one order of magnitude between samples annealed at 400 degrees C and 650 degrees C. (C) 2015 Elsevier B.V. All rights reserved.
Ključne reči:
Mg2TiO4 / Europium / Samarium / Photoluminescence / NanoparticlesIzvor:
Journal of Luminescence, 2016, 170, SI, 679-685Izdavač:
- Elsevier
Finansiranje / projekti:
- Materijali redukovane dimenzionalnosti za efikasnu apsorpciju svetlosti i konverziju energije (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45020)
- Fizika amorfnih i nanostrukturnih materijala (RS-MESTD-Basic Research (BR or ON)-171022)
- APV Provincial Secretariat for Science and Technological Development of the Republic of Serbia [114-451-1850/2014-03]
DOI: 10.1016/j.jlumin.2015.06.007
ISSN: 0022-2313; 1872-7883
WoS: 000367638500045
Scopus: 2-s2.0-84954388285
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Medić, Mina M. AU - Antić, Željka AU - Đorđević, Vesna R. AU - Ahrenkiel, Scott Phillip AU - Marinović-Cincović, Milena AU - Dramićanin, Miroslav PY - 2016 UR - https://vinar.vin.bg.ac.rs/handle/123456789/879 AB - This work explores the influence of annealing temperature on the structure and luminescence of 2 at% Eu3+ and 1 at Sm3+-doped Mg2TiO4 nanopowders produced via Pechini-type polymerized complex route. Mg2TiO4 samples were annealed at 7 different temperatures (400 degrees C, 450 degrees C, 500 degrees C, 550 degrees C, 600 degrees C, 650 degrees C and 700 degrees C) to determine the temperature range in which cubic inverse spinel structure is stable and to follow the changes of material luminescence properties. X-ray diffraction revealed that crystallization of both Eu3+ and Sm3+-doped Mg2TiO4 nanopowders starts at 400 degrees C, and that Sm3+ doped Mg2TiO4 starts to decompose at 650 degrees C, while Eu3+ doped Mg2TiO4 starts to decompose at 700 degrees C. Samples annealed at higher temperatures show higher crystallinity and larger crystallite size. Mg2TiO4 powder annealed at 600 degrees C is composed of similar to 5 nm size nanoparticles agglomerated in micron-size and dense chunks. The emission spectra of nanoparticles are composed of emissions from defects in Mg2TiO4 host and characteristic emissions of Eu3+ (D-5(0) - GT F-7(J)) and Sm3+ ((4)G(5/2) - GT H-6(J)) ions. The stronger emission and longer emission decays are observed with samples annealed at high temperatures. In the case of the Eu3+ ions emission intensity increased one order of magnitude between samples annealed at 400 degrees C and 650 degrees C. (C) 2015 Elsevier B.V. All rights reserved. PB - Elsevier T2 - Journal of Luminescence T1 - Effect of annealing on luminescence of Eu3+- and Sm3+-doped Mg2TiO4 nanoparticles VL - 170 IS - SI SP - 679 EP - 685 DO - 10.1016/j.jlumin.2015.06.007 ER -
@article{ author = "Medić, Mina M. and Antić, Željka and Đorđević, Vesna R. and Ahrenkiel, Scott Phillip and Marinović-Cincović, Milena and Dramićanin, Miroslav", year = "2016", abstract = "This work explores the influence of annealing temperature on the structure and luminescence of 2 at% Eu3+ and 1 at Sm3+-doped Mg2TiO4 nanopowders produced via Pechini-type polymerized complex route. Mg2TiO4 samples were annealed at 7 different temperatures (400 degrees C, 450 degrees C, 500 degrees C, 550 degrees C, 600 degrees C, 650 degrees C and 700 degrees C) to determine the temperature range in which cubic inverse spinel structure is stable and to follow the changes of material luminescence properties. X-ray diffraction revealed that crystallization of both Eu3+ and Sm3+-doped Mg2TiO4 nanopowders starts at 400 degrees C, and that Sm3+ doped Mg2TiO4 starts to decompose at 650 degrees C, while Eu3+ doped Mg2TiO4 starts to decompose at 700 degrees C. Samples annealed at higher temperatures show higher crystallinity and larger crystallite size. Mg2TiO4 powder annealed at 600 degrees C is composed of similar to 5 nm size nanoparticles agglomerated in micron-size and dense chunks. The emission spectra of nanoparticles are composed of emissions from defects in Mg2TiO4 host and characteristic emissions of Eu3+ (D-5(0) - GT F-7(J)) and Sm3+ ((4)G(5/2) - GT H-6(J)) ions. The stronger emission and longer emission decays are observed with samples annealed at high temperatures. In the case of the Eu3+ ions emission intensity increased one order of magnitude between samples annealed at 400 degrees C and 650 degrees C. (C) 2015 Elsevier B.V. All rights reserved.", publisher = "Elsevier", journal = "Journal of Luminescence", title = "Effect of annealing on luminescence of Eu3+- and Sm3+-doped Mg2TiO4 nanoparticles", volume = "170", number = "SI", pages = "679-685", doi = "10.1016/j.jlumin.2015.06.007" }
Medić, M. M., Antić, Ž., Đorđević, V. R., Ahrenkiel, S. P., Marinović-Cincović, M.,& Dramićanin, M.. (2016). Effect of annealing on luminescence of Eu3+- and Sm3+-doped Mg2TiO4 nanoparticles. in Journal of Luminescence Elsevier., 170(SI), 679-685. https://doi.org/10.1016/j.jlumin.2015.06.007
Medić MM, Antić Ž, Đorđević VR, Ahrenkiel SP, Marinović-Cincović M, Dramićanin M. Effect of annealing on luminescence of Eu3+- and Sm3+-doped Mg2TiO4 nanoparticles. in Journal of Luminescence. 2016;170(SI):679-685. doi:10.1016/j.jlumin.2015.06.007 .
Medić, Mina M., Antić, Željka, Đorđević, Vesna R., Ahrenkiel, Scott Phillip, Marinović-Cincović, Milena, Dramićanin, Miroslav, "Effect of annealing on luminescence of Eu3+- and Sm3+-doped Mg2TiO4 nanoparticles" in Journal of Luminescence, 170, no. SI (2016):679-685, https://doi.org/10.1016/j.jlumin.2015.06.007 . .