Influence of Optimized Concentration of Dy3+ Ions on Optical and Luminescence Properties of P2O5 + TeO2 + SrCO3 + MgF2 Glasses for Solid-State Visible Laser and w-LED Applications

Pavithra P., Babu P. R., KAVAZ PERİŞANOĞLU E., Raju B. D. P.

2nd International Conference on Spectroscopy in Materials Science, ICOSIMS 2024, Portuguese, Portekiz, 5 - 07 Haziran 2024, cilt.422 SPPHY, ss.35-52, (Tam Metin Bildiri) identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 422 SPPHY
  • Doi Numarası: 10.1007/978-981-96-4035-5_4
  • Basıldığı Şehir: Portuguese
  • Basıldığı Ülke: Portekiz
  • Sayfa Sayıları: ss.35-52
  • Anahtar Kelimeler: Dy3+ ions, Phosphate glasses, Photoluminescence, Radiative transition probability, Visible lasers, white LEDs
  • Atatürk Üniversitesi Adresli: Evet

Özet

The tellurite-based fluorophosphate (PTSM) glasses are doped with Dysprosium ions and manufactured utilizing the traditional melt quenching process. The physical parameters of produced PTSM glasses were evaluated, and the structural, optical, and fluorescence properties were analysed/studied using XRD, FTIR, photoluminescence research analysis, and optical absorption. The intensity parameters (Ω2, Ω4, Ω6) were analysed using Judd-Ofelt theory, with Ω2 > Ω4 > Ω6 trend. According to the emission spectra, PTSMDy glasses doped with 0.5 mol% Dysprosium ions (PTSMDy05) have the highest emission peak intensity among the produced glasses. The transition 6H15/2 → 6F13/2 produces more radiation at 570 nm and has better optical gain bandwidth, stimulated emission cross-section, and branching ratio. The emission spectra evaluate the fluoro tellurite glass’s applicability to solid-state white light LED applications by colorimetric analysis of the 1931 CIE colour coordinates, Y/B intensity ratio, and CCT values.