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对温度敏感的见解:研究Eu³⁺和Dy³⁺激活的氧化酸的结构和发光

D A Jabali¹, A Y Madkhli¹, G Souadi¹

¹Jazan University, College of Science, Department of Physical Sciences, Physics Division, P.O. Box. 114, Jazan 45142, Saudi Arabia.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

|February 7, 2024

概括

这项研究探讨了用欧 (Eu³⁺) 和 (Dy³⁺) 离子合的氧化 (YCOB) 纳米. 欧盟3+兴奋剂对白色发光二极管 (WLED) 显示出希望.

科学领域:

材料科学材料科学材料科学
固态化学固态化学
发光的光度是非常的低的.

背景情况:

新型材料的开发对于先进的照明技术至关重要.
氧化酸 (YCOB) 是发光剂的有希望的宿主材料.

研究的目的:

为了研究与Eu³⁺和Dy³⁺离子合的YCOB的发光特性.
评估这些合材料在白色发光二极管 (WLED) 等应用中的潜力.

主要方法:

通过燃烧方法合成YCOB:Eu³⁺和YCOB:Dy³⁺纳米.
使用X射线衍射 (XRD),富里埃变换红外光谱 (FTIR) 和能量分散式X射线光谱 (EDS) 的结构和化学表征.
光发光 (PL) 光谱法用于分析激发和发射光谱.
CIE的色彩分析,以评估颜色特性.

主要成果:

成功合成和结构确认YCOB纳米与集成的剂离子.
欧3+兴奋剂表现出在254纳米的电荷传输带和主导的D0 → F2过渡,适合WLED.
Dy3+ 兴奋剂在 345 nm 呈现特征性激发峰值,在 585 nm 呈现初级辐射 (F9/2 - H13/2).
对两种剂都观察到度灭,优化度为Eu3+的7 wt%,Dy3+的2 wt%.
在WLED应用中,eu³⁺注显示出良好的色彩稳定性,而dy³⁺注显示出不一致的色彩.

结论:

YCOB:Eu³⁺纳米因其稳定的色度和发光特性而适合于WLED应用.
这项研究提供了对YCOB.中的多邦离子相互作用和度火机制的见解.
这些发现为优化基于YCOB的材料用于各种光学应用提供了路线图.

关键词:

美国中央情报局 (CIE)度火灭是一种集中式火灭.摄影发光效应是一种光照效应.XRD XRD 在线观看伊特氧酸盐与氧酸盐的关系

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