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通过燃烧产生的冷白光散发Sr3La(PO4) 3:Dy3+ 单相纳米光剂用于有效的照明设备
Diksha Rani1, Anil Kumar2, Dinesh Kumar3
1Department of Chemistry, Deenbandhu Chhotu Ram University of Science and Technology, Murthal, Sonepat, 131039, India.
Journal of fluorescence
|December 14, 2023
概括
这项研究合成了用于白色发光二极管 (WLED) 的Dy3+-doped Sr3La(PO4) 3纳米. 最佳组合显示了优异的光发光特性,用于光电子应用.
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.
背景情况:
- 稀土合纳米对于先进的光电子设备至关重要,包括白色发光二极管 (WLED).
- 开发高效,稳定的是提高设备性能和能源效率的关键.
研究的目的:
- 通过溶液燃烧合成方法合成和描述Dy3+-doped Sr3La(PO4) 3纳米.
- 为潜在的WLED应用研究这些纳米的结构和光发光特性.
主要方法:
- 在1200°C使用尿素作为燃料的溶液燃烧合成.
- 使用粉末X射线衍射 (PXRD),EDAX,传输电子显微镜 (TEM) 和光发光 (PL) 光谱学进行表征.
- 瑞特维尔德精细化用于结构分析.
主要成果:
- 立方格子结构与I-43d空间组由PXRD和Rietveld精细化证实.
- 明显的蓝色 (480nm) 和黄色 (574nm) 发射带归因于Dy3+过渡.
- 在0.03mol的最佳Dy3+度,具有25 Å的临界传输距离,表明多极相互作用.
- 7908 K的计算色彩相关温度 (CCT) 和CIE坐标 (0.292,0.320) 适用于WLED.
结论:
- Sr3La0.97Dy0.03(PO4)3纳米体在单相WLED应用中表现出有希望的光发光.
- 合成的材料是近紫外线 (UV) 激发的WLED的潜在候选者.
- 溶液燃烧合成是生产这些高性能纳米的有效方法.
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