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<p>A&#xa0;novel Li<sub>4</sub>Zn(PO<sub>4</sub>)<sub>2</sub> phosphor compound was synthesized using the renowned combustion synthesis method. The crystal structure and morphology of as-prepared phosphors were carefully examined along with their emission and excitation behaviors and decay profiles. The presence of constituent elements was also confirmed by energy-dispersive X‑ray spectroscopy. Photoluminescence studies revealed a&#xa0;noteworthy relationship between the emission intensity and the concentration of dopant Sm<sup>3+</sup>. Synthesized phosphors exhibited a&#xa0;remarkably intense narrow-band orange-red emission, peak at 597 nm when excited at 401 nm. The average lifetime of phosphors was found to be 1.11 ms. Furthermore, the chromaticity (CIE-Commission Internationale de I’Eclairage) coordinates of phosphors were accurately positioned in the red region, suggesting their suitability for lighting and display applications that require red-emitting materials. Overall, this novel Li<sub>4</sub>Zn(PO<sub>4</sub>)<sub>2</sub> phosphor exhibited promising luminescent properties, making it a&#xa0;potential candidate for various applications in lighting, displays, and other optoelectronic devices.</p>

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Photoluminescence studies on Sm3+ doped Li4Zn(PO4)2 phosphor

  • 期刊论文

  • 发表日期：

    2025年1月1日

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  • Akinapally Naveen,
  • M. Venkateswarlu,
  • M. V. V. K. Srinivas Prasad,
  • M. Syamsundar,
  • G. Giridhar

摘要

A novel Li4Zn(PO4)2 phosphor compound was synthesized using the renowned combustion synthesis method. The crystal structure and morphology of as-prepared phosphors were carefully examined along with their emission and excitation behaviors and decay profiles. The presence of constituent elements was also confirmed by energy-dispersive X‑ray spectroscopy. Photoluminescence studies revealed a noteworthy relationship between the emission intensity and the concentration of dopant Sm3+. Synthesized phosphors exhibited a remarkably intense narrow-band orange-red emission, peak at 597 nm when excited at 401 nm. The average lifetime of phosphors was found to be 1.11 ms. Furthermore, the chromaticity (CIE-Commission Internationale de I’Eclairage) coordinates of phosphors were accurately positioned in the red region, suggesting their suitability for lighting and display applications that require red-emitting materials. Overall, this novel Li4Zn(PO4)2 phosphor exhibited promising luminescent properties, making it a potential candidate for various applications in lighting, displays, and other optoelectronic devices.