P H O T O L U M I N E S C E N C E A N D O P T I C A L PROPERTIES STUDY OF DY3+-DOPED LITHIUM CALCIUM BORATE GLASSES
Keywords:
Borate Glass, photoluminescence, dysprosiumAbstract
The preparation, optical and luminescence properties of Dy2O3 doped in lithium calcium borate glasses (LiCaB) with composition 50Li2O: 20CaO: (30-x)B2O3 : xDy2O3, wherex = 0.00, 0.10, 0.30, 0.50, and 1.0 mol%. have been studied. The glasses were fabricated by normal melt quenching technique at 1000C and then their properties were investigated.The optical spectra were measured and confirmed Dy3+ ions in glass matrices. The emission spectra of Dy3+: LiCaB glasses exhibited 3 emission bands in the blue region at 483 nm(4F9/2→6H15/2), yellow region at 575 nm (4F9/2 → 6H13/2) and a weak band in red region at 665nm (4F9/2 → 6H11/2) under the excitation at 388 nm. The peak intensities increase with the increase of concentration from 0.10 to 1.0 mol%.
References
Swapnaa, K., Mahamuda, Sk., Srinivasa Rao, A.,Jayasimhadri, M., Sasikala, T., and Rama Moorthy,L. (2013). Visible fluorescence characteristics ofDy3+ doped zinc alumino bismuth borate glasses for optoelectronic devices. Ceram Int., 39:8459.
Liu, H, Yu, L., and Li, F. (2013). Photoluminescent properties of Eu3+ and Dy3+ ions doped MgGa2O4phosphors. J. Phys. Chem. Solids, 74(2):196-199.
Zhang, P., Yong-ping, Pu., Xiao-juan, Zhu., Han-yu,Zheng., Jiao-jiao, Zhao., Yu-rong, Wu., Yan-jie,Luo., and Yu-wen, Liu. (2014). Luminescence properties of Dy3+ doped and Dy3+/Ce3+ co-dopedCaO–Al2O3–SiO2–B2O3 glass for LED applications.Ceramics International.
Sun, X.-Y., Wu, S., Liu, X., Gao, P., and Huang, S.-M.(2013). Intensive white light emission from Dy3+-doped Li2B4O7 glasses. J. Non-Cryst. Solids,368:51-54.
Vijayakumar, M., and Marimuthu, K. (2015) Structural and luminescence properties of Dy3+ dopedoxyfluoro-borophosphate glasses for lasingmaterials and white LEDs. J. Alloys Comp.,629:230-241.
Kiran, N., and Suresh Kumar, A. (2013). White light emission from Dy3+ doped sodium–leadborophosphate glasses under UV light excitation. J.Mol. Struct., 1054:6-11.
Venkataiah, G., and Jayasankar, C.K. (2015). Dy3+-doped tellurite based tungsten-zirconium glasses:Spectroscopic study. J. Molecular, 1084:182-189.
Mahamuda, Sk., Swapna, K., Packiyaraj, P., SrinivasaRao, A., Vijaya Prakash, G. (2014). Lasingpotentialities and white light generation capabilities of Dy3+ doped oxy-fluoroborate glasses. J. Lumin.,153:382-392.
