Optical Properties and White Light Emission of Dy3+Doped Alumino Boro-tellurite Glasses
Main Article Content
Abstract
Dy3+doped alumino boro-tellurite (ABT) glasses xB2O3+(80-x)TeO2+10Al2O3+10CaO+ 0.5Dy2O3 (where x = 35; 45 and 55) have been prepared by melting method. Their optical properties were studied through absorption, luminescence spectra and decay time measurements. Judd-Ofelt (JO) intensity parameters (Ωλ, λ = 2, 4 and 6) were determined using absorption spectra and were used to calculate the radiative parameters like transition probability, stimulated emission cross-section, branching ratios, gain band width and optical gain for the 4F9/2→6H13/2 transition in Dy3+ ions. The chromaticity coordinates were used to estimate the emission feature of prepared glasses.
Keywords:
Alumino borotellurite, Judd-Ofelt theory.
References
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[3] R.Y. Yang. H.L. Lai, Microstructure, and luminescence properties of LiBaPO4:Dy3+ phosphors with various Dy3+concentrations prepared by microwave assisted sintering, Journal of Luminescence 145 (2014) 49-54.
[4] Z. Yang, Y. Liu, C. Liu, F. Yang, Q. Yu, X. Li, F. Lu, Multiwavelength excited white-emitting Dy3+ doped Sr3Bi(PO4)3 phosphor, Ceramics International 39 (2013) 7279-7283.
[5] J. Pisarska, R. Lisiecki, W.R. Romanowski, T. Goryczka, W.A. Pisarski, Unusual luminescence behavior of Dy3+-doped lead borate glass after heat treatment, Chemical Physics Letters 489 (2010) 198-201.
[6] O. Ravi, C.M. Reddy, B.S. Reddy, B. Deva, P. Raju, Judd–Ofelt analysis and spectral properties of Dy3+ ions doped niobium containing tellurium calcium zinc borate glasses, Optics Communications 312 (2014) 263-268.
[7] V.P. Tuyen, B. Sengthong, V.X. Quang, P.V. Do, H.V. Tuyen, L.X. Hung, N.T. Thanh, M. Nogami, T. Hayakawa, B.T. Huy, Dy3+ ions as optical probes for studying structure of boro-tellurite glasses, Journal of Luminescence 178 (2016) 27-33.
[8] T. Chengaiah, C.K. Jayasankar, K. Pavani, T. Sasikala, L. Rama Moorthy, Preparation and luminescence characterization of Zn(1−x)MoO4: xDy3+ phosphor for white light-emitting diodes, Optics Communications 312 (2014) 233-237.
[9] J.C. McLaughlin, S.L. Tagg, J.W. Zwanziger, D.R. Haeffner, S.D. Shatri, The structure of tellurite glass: a combined NMR, neutron diffraction, and X-ray diffraction study, Journal of Non-Crystalline Solids 274 (2000) 1-8.
[10] B.R. Judd, Optical Absorption intensities of rare earth ions, Physical Review 127 (1962) 750-756.
[11] G.S. Ofelt, Intensities of crystal spectra of rare earth ions, The Journal of Chemical Physics 37 (1962) 511-517.
[12] W.T. Carnal, P.R. Fields, K. Rajnak, Electronic Energy Levels in the Trivalent Lanthanide Aquo Ions Pr3+, Nd3+, Pm3+, Sm3+, Dy3+, Ho3+, Er3+ and Tm3+, The Journal of Chemical Physics 49 (1968) 4424-4441.
[13] P.V. Do, V.P. Tuyen, V.X. Quang, N. M. Khaidukov, N.T. Thanh, B. Sengthong, B.T. Huy, Energy transfer phenomena and Judd-Ofelt analysis on Sm3+ ions in K2GdF5 crystal, Journal of Luminescence 179 (2016) 93-99.
[14] P.V. Do, V.P. Tuyen, V.X. Quang, N.T. Thanh, V.T.T. Ha, H.V. Tuyen, N.M. Khaidukov, J. Marcazzo, Y.I. Lee, B.T. Huy, Optical properties and Judd–Ofelt parameters of Dy3+ doped K2GdF5 single crystal, Optical Materials 35 (2013) 1636-1641.
[15] N. Vijaya, K. Upendra, C.K. Jayasankar, Dy3+-doped zinc fluorophosphate glasses for white luminescence applications, Spectrochim. Spectrochimica Acta Part A 113 (2013) 145-153.
[16] Sk. Mahamuda, K. Swapna, P. Packiyaraj, A.S. Rao, G.V. Prakash, Lasing potentialities and white light generation capabilities of Dy3+ doped oxy-fluoroborate glasses, Journal of Luminescence 153 (2014) 382-392.
[17] V.P. Tuyen, V.X. Quang, P.V. Do, L.D. Thanh, N.X. Ca, V.X. Hoa, L.V. Tuat, L.A. Thi, M. Nogami, An in-depth study of the Judd-Ofelt analysis, spectroscopic properties and energy transfer of Dy3+ in alumino-lithium-telluroborate glasses, Journal of Luminescence 210 (2019) 435-443.