Synergistic Effect of Mixed Transition Metals and Rare Earth Doping on ‎Lithium Borate Glasses: A Structural and Optical Perspective

  • Authors

    • Anju Bishnoi Department of Electronics & Communication Engineering, Deenbandhu Chhotu Ram ‎University of Science & Technology, Murthal, Sonepat, India-131039
    • Manoj Duhan Department of Electronics & Communication Engineering, Deenbandhu Chhotu Ram ‎University of Science & Technology, Murthal, Sonepat, India-131039
    • Satish Khasa Department of Physics, Deenbandhu Chhotu Ram University of Science & Technology, ‎Murthal, Sonepat, India-131039‎
    https://doi.org/10.14419/25ecam43

    Received date: July 14, 2025

    Accepted date: July 24, 2025

    Published date: July 27, 2025

  • Dysprosium; Photoluminescence; Titanium Dioxide; Transition Metal Ions (TMI); Y/B Ratio

  • Abstract

    Lithium borate glasses doped with transition metal and rare earth elements have gained ‎prominence for their tunable optical properties and diverse technological applications. In this ‎research article, we delve into the unique contributions of key elements, dysprosium (Dy), ‎titanium (Ti), and vanadium (V), in lithium borate glass matrices. The titanium borovandate ‎glass system doped with Dy3+ ions with molar compositions xTiO2·(10-x)V2O5·30Li2O·60B2O3 ‎‎+ 1 mol% Dy2O3 glasses (with x = 0,1,3,5,9,10) have been synthesised using the melt quench ‎technique. An extensive investigation of the structural and optical features has been carried out ‎to evaluate the effects of titanium ions as an addition to the glass matrix. Multiple valence states ‎of titanium (Ti3+ and Ti4+) and that of vanadium (V3+, V4+, and V5+) were unveiled through ‎density variations and UV absorbance analysis. The shifts in bandgap have been ascertained by ‎using a Tauc plot. Photoluminescence spectroscopy (PL) has been utilised to investigate the ‎existence of intrinsic defects in the glass system and the influence of transition metal ions ‎‎(TiO2 and V2O5) on the emission spectra. CIE chromaticity coordinates of the samples have ‎been analysed in the white region, revealing their potential applications in display devices and ‎optical filters‎.

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    Bishnoi, A. ., Duhan , M. ., & Khasa , S. . (2025). Synergistic Effect of Mixed Transition Metals and Rare Earth Doping on ‎Lithium Borate Glasses: A Structural and Optical Perspective. International Journal of Basic and Applied Sciences, 14(3), 373-384. https://doi.org/10.14419/25ecam43