Structure, surface analysis, photoluminescent properties and decay characteristics of Tb 3+ -Eu 3+ co-activated Sr 2 MgSi 2 O 7 phosphor
作者： MA Tshabalala , HC Swart , FB Dejene , E Coetsee , OM Ntwaeaborwa
DOI: 10.1016/J.APSUSC.2015.10.200
关键词:
摘要: Abstract Tb3+-Eu3+ co-activated Sr2MgSi2O7 powder phosphors were synthesized by a solid-state reaction method. The structure, stretching vibrations, chemical and electronic states, photoluminescent properties studied using X-ray diffraction (XRD), Fourier transformed infrared spectroscopy (FT-IR), photoelectron (XPS), Time-of-flight secondary ion mass spectrometer (TOF-SIMS) Photoluminescence (PL) respectively. XRD pattern of the Sr2MgSi2O7:Eu3+, Tb3+ phosphor resembles standard tetragonal phase Sr2MgSi2O7. fitted XPS data demonstrated that there two different Sr2+ sites in host lattice site occupied Mg+ cations which connects Sr+ with Si+ ions. TOF-SIMS results localization distribution various ions within (Sr2MgSiO7) including Eu3+ dopants. photoluminescence single doped shown to emit blue green emissions simultaneously emission more intense improving considerably when lower concentrations used. Only red was observed from Upon co-doping, simultaneous blue, lines resulting white emission.
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sci-hub.se 参考文章(27)
B Karthikeyan, S Mohan, Spectroscopic and glass transition investigations on Nd3+-doped NaF–Na2O–B2O3 glasses Materials Research Bulletin. ,vol. 39, pp. 1507- 1515 ,(2004) , 10.1016/J.MATERRESBULL.2004.04.025
Hajime Yamamoto, Nitride Phosphors and Solid-State Lighting ,(2011)
Abanti Nag, T.R.N. Kutty, Photoluminescence due to efficient energy transfer from Ce3+ to Tb3+ and Mn2+ in Sr3Al10SiO20 Materials Chemistry and Physics. ,vol. 91, pp. 524- 531 ,(2005) , 10.1016/J.MATCHEMPHYS.2004.12.020
Jun Zhou, Zhiguo Xia, Multi-color emission evolution and energy transfer behavior of La3GaGe5O16:Tb3+,Eu3+ phosphors Journal of Materials Chemistry C. ,vol. 2, pp. 6978- 6984 ,(2014) , 10.1039/C4TC01091D
Ling Jiang, Chengkang Chang, Dali Mao, Chuanli Feng, Luminescent properties of Ca2MgSi2O7 phosphor activated by Eu2+, Dy3+ and Nd3+ Optical Materials. ,vol. 27, pp. 51- 55 ,(2004) , 10.1016/J.OPTMAT.2004.02.019
H.A.A. Seed Ahmed, O.M. Ntwaeaborwa, R.E. Kroon, High efficiency energy transfer in Ce,Tb co-doped silica prepared by sol-gel method Journal of Luminescence. ,vol. 135, pp. 15- 19 ,(2013) , 10.1016/J.JLUMIN.2012.10.037
Chun Che Lin, Zhi Ren Xiao, Guang-Yu Guo, Ting-Shan Chan, Ru-Shi Liu, Versatile Phosphate Phosphors ABPO4 in White Light-Emitting Diodes: Collocated Characteristic Analysis and Theoretical Calculations Journal of the American Chemical Society. ,vol. 132, pp. 3020- 3028 ,(2010) , 10.1021/JA9092456
A.A. Kaminskii, L. Bohatý, P. Becker, J. Liebertz, P. Held, H.J. Eichler, H. Rhee, J. Hanuza, Tetragonal Ba2MgGe2O7 – a novel multifunctional optical crystal with numerous manifestations of nonlinear-laser effects: almost sesqui-octave Stokes and anti-Stokes combs and cascaded χ(3) ↔ χ(2) lasing with involved second and third harmonic generation Laser Physics Letters. ,vol. 5, pp. 845- 868 ,(2008) , 10.1002/LAPL.200810089
Yan Hao, Yu-Hua Wang, Synthesis and photoluminescence of new phosphors M2(Mg, Zn)Si2O7:Mn2+ (M=Ca, Sr, Ba) Materials Research Bulletin. ,vol. 42, pp. 2219- 2223 ,(2007) , 10.1016/J.MATERRESBULL.2006.12.015
Chaofeng Zhu, Stéphane Chaussedent, Shujiang Liu, Yanfei Zhang, André Monteil, Nathalie Gaumer, Yuanzheng Yue, Composition dependence of luminescence of Eu and Eu/Tb doped silicate glasses for LED applications Journal of Alloys and Compounds. ,vol. 555, pp. 232- 236 ,(2013) , 10.1016/J.JALLCOM.2012.12.052