Emission Analysis of Dy3+ Doped Fluoroborate Optical Glasses

B. Hemalatha Rudramadevi*
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B. Hemalatha Rudramadevi*: Department of Physics, Sri Venkateswara University, Tirupati-517 502

International Journal of Research and Scientific Innovation, 2025, vol. 12, issue 15, 372-377

Abstract: Trivalent rare earth ion Dy3+ doped with various concentrations (0.1, 0.2 & 0.3 mol) of Zinc magnesium lithium fluoro borate (ZMLB) optical glass were synthesized through traditional melt quenching method and their emission spectra were observed under an excitation with 386 nm, it exhibits four emission bands were positioned at 481, 575, 662 and 753 nm corresponding to 4F5/2→6H15/2, 4F5/2→4F13/2, 4F5/2→ 4F11/2 and 4F5/2→ 4F9/2 transitions of Dy3+ ion, respectively. The decay lifetimes were determined and the lifetimes were decreased with the rise of Dy3+ doping concentration. The CIE coordinate values were estimated from emission spectra, which positioned at white light emission region. Based on all these results, Dy3+ ions doped ZMLB optical glasses are highly desirable for white light emitting applications.

Date: 2025
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