Akinapally Naveen, M. Venkateswarlu, M. V. V. K. Srinivas Prasad, M. Syamsundar, G. Giridhar
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引用次数: 0
摘要
采用燃烧合成法合成了一种新型Li4Zn(PO4)2荧光粉化合物。对制备的荧光粉的晶体结构和形貌进行了仔细的研究，并对其发射和激发行为以及衰减谱进行了研究。组成元素的存在也被能量色散X射线光谱证实。光致发光研究表明，Sm3+掺杂浓度与发射强度之间存在显著的关系。合成的荧光粉表现出强烈的窄波段橙红色发射，在401 nm处激发时在597 nm处达到峰值。发现荧光粉的平均寿命为1.11 ms。此外，荧光粉的色度（CIE-Commission Internationale de I’eclairage）坐标被准确地定位在红色区域，表明它们适合需要发红光材料的照明和显示应用。总的来说，这种新型的Li4Zn(PO4)2荧光粉表现出了很好的发光特性，使其成为照明、显示器和其他光电器件中各种应用的潜在候选材料。
Photoluminescence studies on Sm3+ doped Li4Zn(PO4)2 phosphor
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.
期刊介绍：
Russian Physics Journal covers the broad spectrum of specialized research in applied physics, with emphasis on work with practical applications in solid-state physics, optics, and magnetism. Particularly interesting results are reported in connection with: electroluminescence and crystal phospors; semiconductors; phase transformations in solids; superconductivity; properties of thin films; and magnetomechanical phenomena.
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