<p>Molybdenum-doped Zinc Oxyfluoro Alumina Borophosphate Glasses with the composition 10 B<sub>2</sub>O<sub>3</sub> – 77 P<sub>2</sub>O<sub>5</sub> – 5 Al<sub>2</sub>O<sub>3</sub> – (4-x/2) ZnO – (4-x/2) ZnF<sub>2</sub>; x MoO<sub>3</sub> (where x = 0, 0.1, 0.2, 0.3, 0.4, and 0.5) were synthesized. The produced glasses have been characterized using XRD, SEM, and EDAX techniques. The impact on molybdenum ion coordination states changed in the glass network is investigated via DTA, FTIR, Raman, OA, and ESR spectroscopy, in conjunction with an evaluation of their mechanical properties through elastic parameters. Spectroscopic studies confirmed the coexistence of molybdenum ions in a couple of oxidation states. FTIR and Raman spectral deconvolution revealed the presence of [MoO<sub>6</sub>] and [Mo<sub>2</sub>O<sub>7</sub>] structural devices in the glass network. The effects indicated that molybdenum ions exist as Mo<sup>6+</sup> (occupying each octahedral and tetrahedral position) and Mo<sup>5+</sup> (occupying octahedral positions), with the redox ratio growing as MoO<sub>3</sub> concentration increases.</p>

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Exploration of elastic and optical features of zinc oxyfluoro alumina borophosphate glasses doped with molybdenum ions

  • N. Rama Krishna Chand,
  • Jyothi Budida,
  • Ch. Srinivasa Rao,
  • Ravi Kumar Guntu

摘要

Molybdenum-doped Zinc Oxyfluoro Alumina Borophosphate Glasses with the composition 10 B2O3 – 77 P2O5 – 5 Al2O3 – (4-x/2) ZnO – (4-x/2) ZnF2; x MoO3 (where x = 0, 0.1, 0.2, 0.3, 0.4, and 0.5) were synthesized. The produced glasses have been characterized using XRD, SEM, and EDAX techniques. The impact on molybdenum ion coordination states changed in the glass network is investigated via DTA, FTIR, Raman, OA, and ESR spectroscopy, in conjunction with an evaluation of their mechanical properties through elastic parameters. Spectroscopic studies confirmed the coexistence of molybdenum ions in a couple of oxidation states. FTIR and Raman spectral deconvolution revealed the presence of [MoO6] and [Mo2O7] structural devices in the glass network. The effects indicated that molybdenum ions exist as Mo6+ (occupying each octahedral and tetrahedral position) and Mo5+ (occupying octahedral positions), with the redox ratio growing as MoO3 concentration increases.