Abstract
A novel sol-gel processing was developed to synthesize polycrystalline cerium-doped lutetium pyrosilicate (Lu2Si2O7:Ce, LPS:Ce) powders under low temperature. It was found that the addition of propylene oxide (PPO) could promote the formation of Lu-O-Si bonds in precursor, which was beneficial to the formation of LPS phase. X-ray diffraction (XRD) patterns indicated that the single-phased LPS powder was well crystallized at 1050°C. Microstructure observation demonstrated that the synthetic LPS powder was composed of ellipsoidal grains with the mean size of 40 nm. The luminescent properties were characterized by photoluminescence (PL), X-ray excited luminescence (XEL) and vacuum ultraviolet (VUV) spectroscopy at room temperature. The synthetic LPS:Ce powder emitted a broad emission spectrum centered at about 380 nm, which should be ascribed to the 5d→4f transition of Ce3+. Decay time of the synthetic LPS:Ce powder was measured to be only 32 ns.
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Pidol L, Kahn-Harari A, Viana B, et al. Scintillation properties of Lu2Si2O7:Ce3+, a fast and efficient scintillator crystal. J Phys: Condens Matter, 2003, 15(12): 2091–2102
Pidol L, Kahn-Harari A, Viana B, et al. High efficiency of lutetium silicate scintillators, Ce-doped LPS, and LYSO crystals. IEEE Trans Nucl Sci, 2004, 51(3): 1084–1087
Yan C, Zhao G, Hang Y, et al. Comparison of cerium-doped Lu2Si2O7 and Lu2SiO5 scintillators. J Cryst Growth, 2005, 281(2–4): 411–415
Pidol L, Kahn-Harari A, Viana B, et al. Czochralski growth and physical properties of cerium-doped lutetium pyrosilicate scintillators Ce3+:Lu2Si2O7. J Cryst Growth, 2005, 275(1–2): e899–e904
Pidol L, Viana B, Kahn-Harari A, et al. Scintillation and thermo-luminescence properties of Lu2Si2O7: Ce3+ crystals. Nucl Instrum Methods Phys Res, Sect A, 2005, 537(1–2): 256–260
Yan C, Zhao G, Hang Y, et al. Czochralski growth and crystal structure of cerium-doped Lu2Si2O7 scintillator. Mater Lett, 2006, 60(16): 1960–1963
Feng H, Ding D, Li H, et al. Cerium concentration and temperature dependence of the luminescence of Lu2Si2O7:Ce scintillator. J Alloys Compd, 2011, 509(9): 3855–3858
Li Y, You B, Zhang W, et al. Luminescent properties of β-Lu2Si2O7:RE3+(RE=Ce, Tb) nanoparticles by sol-gel method. J Rare Earths, 2008, 26(3): 455–458
Sokolnicki J, Guzik M. Synthesis and photoluminescence of nanocrystalline lutetium pyrosilicate doped with Ce3+. Opt Mater, 2009, 31(6): 826–830
Tripathi H S, Sarin V K. Synthesis and densification of lutetium pyrosilicate from lutetia and silica. Mater Res Bull, 2007, 42(2): 197–202
Tang M, Guo Y Q, Yuan J, et al. Review of some recent progress on materials science researches in China. Sci China Chem, 2012, 55(12): 2497–2502
Jalabadze N V, Chedia R, Kukava T, et al. Development of new technologies for the manufacturing of nanocrystalline scintillation materials. IEEE Trans Nucl Sci, 2008, 55(3): 1514–1522
Walker J D, Tannenbaum R. Characterization of the sol-gel formation of iron (III) oxide/hydroxide nanonetworks from weak base molecules. Chem Mater, 2006, 18(20): 4793–4801
Cui H, Ren W. A new chemical strategy: Mineralizer-free synthesis of iron zircon ultrafine particles by an epoxide assisted sol-gel route. J Non-Cryst Solids, 2008, 354(52–54): 5432–5434
Yu R, Yu K, Wei W, et al. Nd2O3 nanoparticles modified with a silane-coupling agent as a liquid laser medium. Adv Mater, 2007, 19(6): 838–842
Cui H, Zayat M, Levy D. Nanoparticle synthesis of willemite doped with cobalt ions (Co0.05Zn1.95SiO4) by an epoxide-assisted sol-gel method. Chem Mater, 2005, 17(22): 5562–5566
Wen H, Dong S, He P, et al. Sol-gel synthesis and characterization of ytterbium silicate powders. J Am Ceram Soc, 2007, 90(12): 4043–4046
Walrafen G E. Raman spectral studies of water structure. J Chem Phys, 1964, 40(11): 3249–3256
Yermolayeva Y V, Tolmachev A V, Korshikova T I, et al. Spherical core-shell structured nanophosphors on the basis of europium-doped lutetium compounds. Nanotechnology, 2009, 20(32): 325601
Pidol L, Viana B, Kahn-Harari A, et al. Optical properties and energy levels of Ce3+ in lutetium pyrosilicate scintillator crystal. J Appl Phys, 2004, 95(12): 7731–7737
Mao R, Zhang L, Zhu R Y. Emission spectra of LSO and LYSO crystals excited by UV light, X-Ray and Γ-ray. IEEE Trans Nucl Sci, 2008, 55(3): 1759–1766
Ricci P C, Carbonaro C M, Casu A, et al. Optical and structural characterization of cerium doped LYSO sol-gel polycrystal films: potential application as scintillator panel for X-ray imaging. J Mater Chem, 2011, 21(21): 7771–7776
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Fan, L., Xu, J., Shi, Y. et al. Lower temperature synthesis of cerium-doped polycrystalline lutetium pyrosilicate powders by a novel sol-gel processing. Sci. China Technol. Sci. 57, 1610–1615 (2014). https://doi.org/10.1007/s11431-014-5600-7
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DOI: https://doi.org/10.1007/s11431-014-5600-7