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Updated: Jul 22, 2025
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Low-energy Cathodoluminescence for OxyNitride Phosphors
Published on: November 15, 2016
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酸盐中eu的空位增强自我减少
Hongling Wang1, Ke Su1,2, Lefu Mei1
1Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, Beijing 100083, China.
Inorganic chemistry
|July 25, 2023
概括
这项研究探讨了氧气空缺如何影响酸盐的自我减少. 研究人员开发了新的BaZnP2O7:Eu,Mg光体,具有可调节的色彩发射特性,用于温度传感和防伪应用.
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的.
背景情况:
- 目前对铁酸自我减少的理解依赖于非等效的替代电荷补偿.
- 氧气空缺在增强这种自我降低机制中的作用仍然未被充分探索.
研究的目的:
- 研究氧气空缺对酸盐中Eu3+自降降为Eu2+的影响.
- 为先进的应用开发具有可调节的排放性质的新型异质.
主要方法:
- 在空气中进行常规固体相合成,以制备Ba1-xZnx-yMg yP2O7:Eu2+/3+.
- 分析晶体结构,相分离和发光特性.
- 对温度依赖的发光效应进行评价,用于传感和防伪.
主要成果:
- 合成的BaZnP2O7:Eu,Mg光体呈现色调可调的发射从红色到蓝紫色.
- 观察到显著的温度依赖的发光特性,最大的S a为0.4725%K−1 (498K) 和S r为1.376%K−1 (423K).
- 对于非接触式光学温度测量和防伪应用的已证明潜力.
结论:
- 阴离子替代策略有效调节发光,并产生空缺缺陷,影响自我减少.
- 在这些中,氧气空缺在 Eu3+ 到 Eu2+ 的自我降解增强中起着至关重要的作用.
- 开发的光体显示出对多色功能材料,光学温度计和防伪技术的前景.
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