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Luminescent and scintillation properties of Ce3+ doped Ca2RMgScSi3O12 (R = Y, Lu) single crystalline films

(2018) JOURNAL OF LUMINESCENCE. 195. p.362-370
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Abstract
The work is dedicated to the growth and investigation of the luminescent and scintillation properties of single crystalline films (SCFs) of Ca2-xR1+xMg1+xSc1-xSi3O12:Ce (R = Y, Lu) mixed garnets with x = 0-0.25, grown using the liquid phase epitaxy method onto Y3Al5O12 substrates from PbO-B2O3 based flux. The absorption, luminescent and scintillation properties of Ca2-xY1+xMg1+xSc1-xSi3O12:Ce and Ca2-xLu1+xMg1+xSc1-xSi3O12:Ce SCFs with x = 0 and 0.25 were investigated and compared with the reference YAG:Ce and LuAG:Ce SCFs. Using the Ca2+, Mg2+ and Si4+ alloying, the Ce3+ emission spectra in Ca2-xR1+xMg1+xSc1-xSi3O12:Ce (R = Y, Lu; x = 0-0.25) SCFs can be notably extended in the red range in comparison with YAG: Ce and LuAG: Ce SCFs due to the increase of crystal field strength and Ce3+ multicenter creation in the dodecahedral positions of the lattices of these mixed garnet compounds. Due to the formation of Ce4+ ions, the as-grown Ca2-xR1+xMg1+xSc1-xSi3O12:Ce (R = Y, Lu) SCFs at x = 0 and 0.25 show relatively low light yield. However, after annealing in reducing atmosphere (95% N-2 + 5% H-2) at T > 1000 degrees C, a recharging Ce4+ -> Ce3+ takes place. After that, these SCFs possess the light yield about of 30% and 31% in comparison with the reference YAG: Ce and LuAG: Ce SCFs, respectively, and a fast scintillation response with the decay times in the ns range under a-particles excitation by Pu-239 (5.15 MeV) source.
Keywords
Scintillators, Garnets, Single crystalline films, Liquid phase epitaxy, Ce dopant, EPITAXIAL-GROWTH, ENERGY-TRANSFER, GARNET, PHOSPHORS, SCREENS, LSO, TB, PEROVSKITE, RESOLUTION, OXIDES

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Citation

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Chicago
Gorbenko, V, T Zorenko, P Pawlowski, A Iskaliyeva, K Paprocki, A Suchocki, Ya Zhydachevskii, et al. 2018. “Luminescent and Scintillation Properties of Ce3+ Doped Ca2RMgScSi3O12 (R = Y, Lu) Single Crystalline Films.” Journal of Luminescence 195: 362–370.
APA
Gorbenko, V., Zorenko, T., Pawlowski, P., Iskaliyeva, A., Paprocki, K., Suchocki, A., Zhydachevskii, Y., et al. (2018). Luminescent and scintillation properties of Ce3+ doped Ca2RMgScSi3O12 (R = Y, Lu) single crystalline films. JOURNAL OF LUMINESCENCE, 195, 362–370.
Vancouver
1.
Gorbenko V, Zorenko T, Pawlowski P, Iskaliyeva A, Paprocki K, Suchocki A, et al. Luminescent and scintillation properties of Ce3+ doped Ca2RMgScSi3O12 (R = Y, Lu) single crystalline films. JOURNAL OF LUMINESCENCE. 2018;195:362–70.
MLA
Gorbenko, V, T Zorenko, P Pawlowski, et al. “Luminescent and Scintillation Properties of Ce3+ Doped Ca2RMgScSi3O12 (R = Y, Lu) Single Crystalline Films.” JOURNAL OF LUMINESCENCE 195 (2018): 362–370. Print.
@article{8546751,
  abstract     = {The work is dedicated to the growth and investigation of the luminescent and scintillation properties of single crystalline films (SCFs) of Ca2-xR1+xMg1+xSc1-xSi3O12:Ce (R = Y, Lu) mixed garnets with x = 0-0.25, grown using the liquid phase epitaxy method onto Y3Al5O12 substrates from PbO-B2O3 based flux. The absorption, luminescent and scintillation properties of Ca2-xY1+xMg1+xSc1-xSi3O12:Ce and Ca2-xLu1+xMg1+xSc1-xSi3O12:Ce SCFs with x = 0 and 0.25 were investigated and compared with the reference YAG:Ce and LuAG:Ce SCFs. Using the Ca2+, Mg2+ and Si4+ alloying, the Ce3+ emission spectra in Ca2-xR1+xMg1+xSc1-xSi3O12:Ce (R = Y, Lu; x = 0-0.25) SCFs can be notably extended in the red range in comparison with YAG: Ce and LuAG: Ce SCFs due to the increase of crystal field strength and Ce3+ multicenter creation in the dodecahedral positions of the lattices of these mixed garnet compounds. Due to the formation of Ce4+ ions, the as-grown Ca2-xR1+xMg1+xSc1-xSi3O12:Ce (R = Y, Lu) SCFs at x = 0 and 0.25 show relatively low light yield. However, after annealing in reducing atmosphere (95% N-2 + 5% H-2) at T > 1000 degrees C, a recharging Ce4+ -> Ce3+ takes place. After that, these SCFs possess the light yield about of 30% and 31% in comparison with the reference YAG: Ce and LuAG: Ce SCFs, respectively, and a fast scintillation response with the decay times in the ns range under a-particles excitation by Pu-239 (5.15 MeV) source.},
  author       = {Gorbenko, V and Zorenko, T and Pawlowski, P and Iskaliyeva, A and Paprocki, K and Suchocki, A and Zhydachevskii, Ya and Fedorov, A and Khaidukov, N and Van Deun, Rik and Schröppel, F and Osvet, A and Batentschuk, M and Zorenko, Yu},
  issn         = {0022-2313},
  journal      = {JOURNAL OF LUMINESCENCE},
  keywords     = {Scintillators,Garnets,Single crystalline films,Liquid phase epitaxy,Ce dopant,EPITAXIAL-GROWTH,ENERGY-TRANSFER,GARNET,PHOSPHORS,SCREENS,LSO,TB,PEROVSKITE,RESOLUTION,OXIDES},
  language     = {eng},
  pages        = {362--370},
  title        = {Luminescent and scintillation properties of Ce3+ doped Ca2RMgScSi3O12 (R = Y, Lu) single crystalline films},
  url          = {http://dx.doi.org/10.1016/j.jlumin.2017.11.052},
  volume       = {195},
  year         = {2018},
}

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