Optical and structural properties of lithium sodium borate glasses doped Dy3+ ions

• Main Authors: Said Dawaud, Raghda Saeif Eddin, Hashim, Suhairul, Alajerami, Yasser Saleh Mustafa, Mhareb, M. H. A., Tamchek, Nizam
• Format: Article
• Language: English
• Published: Elsevier 2014
• Online Access: http://psasir.upm.edu.my/id/eprint/34753/1/Optical%20and%20structural%20properties%20of%20lithium%20sodium%20borate%20glasses%20doped%20Dy3.pdf; http://psasir.upm.edu.my/id/eprint/34753/; http://www.sciencedirect.com/science/article/pii/S0022286014006450
• Institution: Universiti Putra Malaysia

Absorption and emission spectra of lithium sodium borate glass doped with different concentrations of Dy3+ have been reported. The concentration of Dy3+ was varied from 0.3 to 1.3 mol%. The amorphous nature of the prepared samples was confirmed by the X-ray Diffraction (XRD). Fourier transforms infrared (FTIR) spectra, and other significant physical properties (energy band gap, density, ion concentration, molar volume, Polaron radius and inter-nuclear distance) have been analyzed in the light of the different oxidation states of the co-dopant ions. The absorption spectrum showed nine peaks with hypersensitive transition corresponding to 6F11/2 + 6H9/2 at 1256 nm. As a result of 380 nm excitation wavelength, the luminescence spectra showed two characteristic bands at 479 nm and 587 nm. These absorption bands were attributed to 6P15/2 → 6H15/2 and 6P15/2 → 6H13/2 transitions of trivalent Dy3+ ions. The current study indicates that Dy doped lithium sodium borate glasses are attractive for solid-state laser applications.