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Low-energy Cathodoluminescence for OxyNitride Phosphors
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高效的有机-无机氧化物红色的光学增强通过化辅助兴奋剂战略
Xiaoyi Liu1,2, Haiming Cheng3, Hu Wang2
1College of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China. liuguixia22@163.com.
Dalton transactions (Cambridge, England : 2003)
|October 23, 2023
概括
一种新的有机阴离子矩阵,[N(CH3)4]3MoO3F3,已被开发用于Mn4+兴奋剂,通过阴离子联合兴奋剂实现高内部量子效率 (IQE) 和改进的光谱特性. 这一进步使得用于照明和显示的高效的WLED设备成为可能.
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:
- 开发高效的发光材料对于先进的照明和显示技术至关重要.
- 有机-无机混合材料为光电子应用提供独特的特性.
- 添加的体 (Mn4+) 对温暖白色发光二极管 (WLED) 是有前途的.
研究的目的:
- 为了构建一个新的有机阴离子氧化化物矩阵,[N(CH3)4]3MoO3F3,用于Mn4+兴奋剂.
- 为了研究阴离子联合兴奋剂 (Mg2+/Zn2+/Li+) 对合成的发光特性的影响.
- 为了评估这些体在WLED设备中的性能,用于实际应用.
主要方法:
- 一种新的有机阴离子氧化物基质的合成:[N(CH3)4]3MoO3F3.3.
- 纳入Mn4+兴奋剂,随后与Mg2+,Zn2+和Li+联合兴奋.
- 结构,光学和发光性质的表征,包括内部量子效率 (IQE).
- 使用开发的光器件制造和测试WLED设备.
主要成果:
- [N(CH3)4]3MoO3F3矩阵在Mn4+兴奋剂中有效防止了电荷补偿缺陷,产生了高IQE的91.05%.
- 阴离子共兴奋剂显著提高了结晶性,发光强度,量子效率 (QE),热稳定性和水稳定性.
- 与[N(CH3)4]2TiF6:Mn4+的比较分析阐明了矩阵类型和替代对光谱特性的影响.
- 装有这些光体的WLED设备显示出非常好的光电性能,适合室内照明和显示器.
结论:
- 新的[N(CH3)4]3MoO3F3矩阵是高效的Mn4+化的有希望的宿主.
- 阴离子共是优化发光材料性能的一种有效策略.
- 这些光体对下一代WLED应用在照明和显示器中具有重大潜力.
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