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<p>Novel Li<sub>4</sub>Zn(PO<sub>4</sub>)<sub>2</sub>:Tb<sup>3+</sup> green-light-emitting phosphors were synthesized using the combustion process. A thorough investigation was done on the crystal phase, shape, morphology, and luminescence properties, including decay curves. With the P21(4) space group, the Li<sub>4</sub>Zn(PO<sub>4</sub>)<sub>2</sub>:Tb<sup>3+</sup> phosphors showed a monoclinic structure. It was calculated that the average crystal size was about 80 nm. Under excitation at 250 nm, a strong green emission peak at 545 nm attributed to <sup>5</sup><i>D</i><sub>4</sub> → <sup>7</sup><i>F</i><sub>5</sub> transition was observed in the present host. It was found that the emission intensity depended on the dopant concentration.</p>

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Photoluminescence Studies on Tb3+-Doped Li4Zn(PO4)2 Phosphors

  • 期刊论文

  • 发表日期：

    2025年9月12日

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  • Akinapally Naveen,
  • M. Venkateswarlu,
  • M. V. V. K. Srinivas Prasad,
  • P. Tejeswara Rao,
  • N. Chandana,
  • M. Ravi,
  • G. Giridha

摘要

Novel Li4Zn(PO4)2:Tb3+ green-light-emitting phosphors were synthesized using the combustion process. A thorough investigation was done on the crystal phase, shape, morphology, and luminescence properties, including decay curves. With the P21(4) space group, the Li4Zn(PO4)2:Tb3+ phosphors showed a monoclinic structure. It was calculated that the average crystal size was about 80 nm. Under excitation at 250 nm, a strong green emission peak at 545 nm attributed to 5D4 → 7F5 transition was observed in the present host. It was found that the emission intensity depended on the dopant concentration.