Photoluminescence of Y3NbO7:Eu3+ powders
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2022
Authors
Đačanin Far, LjubicaĆirić, Aleksandar
Ristić, Zoran
Periša, Jovana
Dramićanin, Tatjana
Lukić-Petrović, Svetlana R.
Dramićanin, Miroslav
Article (Published version)
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Y3NbO7:xEu3+ powders (x = 0.25, 0.5, 0.75, 2, 3, 5, 10 at%) were synthesized by a two-step vibrational milling, alternating with annealing. All the samples crystallize as fluorite-type structure (space group Fm3‾m), with crystallite size 50–60 nm and show a strong orange/red luminescence with an excited state lifetime around 1.2 ms. Photoluminescence excitation and emission spectra show rapid intensity decline after 3 at% of Eu3+ content, indicating this concentration as critical for the concentration quenching, and we predicted multipolar interaction as the dominant mechanism behind it. Judd–Ofelt intensity parameters (Ω2 = 0.941∙10−20 cm2, Ω4 = 0.277∙10−20 cm2, Ω6 = 0.277∙10−20 cm2) were obtained from the excitation spectrum of Y3NbO7:3 at%Eu3+. The emission of this luminescent powder is characterized by radiative and nonradiative lifetimes of 2.3 ms and 2.4 ms, respectively, and an intrinsic quantum yield of 51.5%.
Keywords:
Judd ofelt / Lifetime / Milling / Niobates / Optical propertiesSource:
Ceramics International, 2022Funding / projects:
- Ministry of Education, Science and Technological Development of the Republic of Serbia.
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VinčaTY - JOUR AU - Đačanin Far, Ljubica AU - Ćirić, Aleksandar AU - Ristić, Zoran AU - Periša, Jovana AU - Dramićanin, Tatjana AU - Lukić-Petrović, Svetlana R. AU - Dramićanin, Miroslav PY - 2022 UR - https://vinar.vin.bg.ac.rs/handle/123456789/10342 AB - Y3NbO7:xEu3+ powders (x = 0.25, 0.5, 0.75, 2, 3, 5, 10 at%) were synthesized by a two-step vibrational milling, alternating with annealing. All the samples crystallize as fluorite-type structure (space group Fm3‾m), with crystallite size 50–60 nm and show a strong orange/red luminescence with an excited state lifetime around 1.2 ms. Photoluminescence excitation and emission spectra show rapid intensity decline after 3 at% of Eu3+ content, indicating this concentration as critical for the concentration quenching, and we predicted multipolar interaction as the dominant mechanism behind it. Judd–Ofelt intensity parameters (Ω2 = 0.941∙10−20 cm2, Ω4 = 0.277∙10−20 cm2, Ω6 = 0.277∙10−20 cm2) were obtained from the excitation spectrum of Y3NbO7:3 at%Eu3+. The emission of this luminescent powder is characterized by radiative and nonradiative lifetimes of 2.3 ms and 2.4 ms, respectively, and an intrinsic quantum yield of 51.5%. T2 - Ceramics International T1 - Photoluminescence of Y3NbO7:Eu3+ powders DO - 10.1016/j.ceramint.2022.06.130 ER -
@article{ author = "Đačanin Far, Ljubica and Ćirić, Aleksandar and Ristić, Zoran and Periša, Jovana and Dramićanin, Tatjana and Lukić-Petrović, Svetlana R. and Dramićanin, Miroslav", year = "2022", abstract = "Y3NbO7:xEu3+ powders (x = 0.25, 0.5, 0.75, 2, 3, 5, 10 at%) were synthesized by a two-step vibrational milling, alternating with annealing. All the samples crystallize as fluorite-type structure (space group Fm3‾m), with crystallite size 50–60 nm and show a strong orange/red luminescence with an excited state lifetime around 1.2 ms. Photoluminescence excitation and emission spectra show rapid intensity decline after 3 at% of Eu3+ content, indicating this concentration as critical for the concentration quenching, and we predicted multipolar interaction as the dominant mechanism behind it. Judd–Ofelt intensity parameters (Ω2 = 0.941∙10−20 cm2, Ω4 = 0.277∙10−20 cm2, Ω6 = 0.277∙10−20 cm2) were obtained from the excitation spectrum of Y3NbO7:3 at%Eu3+. The emission of this luminescent powder is characterized by radiative and nonradiative lifetimes of 2.3 ms and 2.4 ms, respectively, and an intrinsic quantum yield of 51.5%.", journal = "Ceramics International", title = "Photoluminescence of Y3NbO7:Eu3+ powders", doi = "10.1016/j.ceramint.2022.06.130" }
Đačanin Far, L., Ćirić, A., Ristić, Z., Periša, J., Dramićanin, T., Lukić-Petrović, S. R.,& Dramićanin, M.. (2022). Photoluminescence of Y3NbO7:Eu3+ powders. in Ceramics International. https://doi.org/10.1016/j.ceramint.2022.06.130
Đačanin Far L, Ćirić A, Ristić Z, Periša J, Dramićanin T, Lukić-Petrović SR, Dramićanin M. Photoluminescence of Y3NbO7:Eu3+ powders. in Ceramics International. 2022;. doi:10.1016/j.ceramint.2022.06.130 .
Đačanin Far, Ljubica, Ćirić, Aleksandar, Ristić, Zoran, Periša, Jovana, Dramićanin, Tatjana, Lukić-Petrović, Svetlana R., Dramićanin, Miroslav, "Photoluminescence of Y3NbO7:Eu3+ powders" in Ceramics International (2022), https://doi.org/10.1016/j.ceramint.2022.06.130 . .