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新型Dy3+和Tb3+活化Ca10的结构和发光特性 (PO4) 6Cl2 光用于固态照明设备
Roshana T Maske1, A N Yerpude1, Rupesh S Wandhare2
1Department of Physics, N.H. College, Chandrapur, India.
概括
用 (Dy3+) 和 (Tb3+) 杂的新型被合成用于固态照明. 这些材料呈现出有希望的蓝色和色/绿色排放,这表明近紫外线应用的潜力.
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:
- 开发高效的光剂对于推进固态照明 (SSL) 技术至关重要.
- 稀土合无机材料为各种应用提供可调节的发光性能.
研究的目的:
- 为了合成和描述新型的Dy3+和Tb3+化Ca10化PO4化) 6化Cl2化物.
- 调查这些光体的光发光特性,以便在近紫外线SSL应用中潜在使用.
主要方法:
- 传统的湿化学合成技术.
- 用于相位分析的X射线衍射 (XRD).
- 扫描电子显微镜 (SEM) 用于形态学.
- 福里埃变换红外光谱 (FTIR) 用于结构确认.
- 光发光 (PL) 和光发光激发 (PLE) 光谱用于光学特征.
主要成果:
- XRD证实了Ca10(PO4)6Cl2宿主材料的成功合成,与PDF卡号一致. 7032212.2. 这是一个很好的选择.
- 在SEM图像中,发现了尺寸和形状不均的亚微米粒子.
- FTIR分析表明存在酸盐 (PO4) 3-和Ca-O群结合.
- 在350nm激发下,Ca10(PO4)6Cl2:Dy3+呈现出蓝色 (474nm) 和色 (572nm) 排放.
- 在354nm和379nm激发下,Tb3+分别显示出蓝色 (470nm) 和绿色 (543nm) 排放.
- 在Dy3+和Tb3+合的度火被归因于双极-双极相互作用.
结论:
- 合成的Dy3+和Tb3+合的Ca10(PO4) 6Cl2体具有理想的发光特性.
- 这些体显示出在近紫外线固态照明装置中的应用潜力.
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