Luminescence investigations on Dy3+ doped CdO-PbF2 phosphate glass-ceramics

• DOI: 10.1016/j.molstruc.2021.130784
• Publication Date: 2021-05-31T03:24:49Z
• Authors: Ch. Nageswara Rao; P. Vasudeva Rao; R. Kameswari; R. Ramesh Raju; G. Chandana; K. Samatha; M.V.V.K. Srinivas...; M. Venkateswarlu; A. Naveen; G.G. Dhar
• Keywords: 02 engineering and technology; 0210 nano-technology

Abstract This paper reports the structural and photoluminescence investigations on Dy3+ doped transparent CdO-PbF2 phosphate glass/glass ceramics with SrO. Upon heat treatment, the nanocrystals occurred in glass ceramics are spherical in shape in the sizes of 10nm to 20nm. The luminescence intensities were strongly dependent on nanocrystallinity and showing the same kinetics as efficient luminescent hosts. In the present host, well incorporation of Dy3+ ions in nanocrystals and low energy transfer to Dy3+ ions due to existence of other crystalline phases, both the mechanisms occurred. The consequent variations in luminescence intensities also observed.