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GSAG:Ce闪电器:从伊特添加剂的见解
Ondřej Zapadlík1,2,3, Jan Pejchal2, Vladimir Babin2
1CRYTUR, Ltd Na Lukách 2283, Turnov 511 01 Czech Republic.
RSC advances
|January 23, 2025
概括
将伊 (Y) 添加到加多 (Gadolinium) (Scandium) (Aluminum) 石榴石中,并添加 (GSAG:Ce) 闪器,但由于热灭,光效没有得到改善. 其他缺陷,而不是热电离,可能导致GSAG:Ce.Ce的性能低下.
科学领域:
- 材料科学 材料科学 材料科学
- 固态物理 固态物理
- 发光的光度是非常的低.
背景情况:
- 与 (GSAG:Ce) 合的加多,斯堪迪,花是一种具有成本效益的闪器替代品.
- 在GSAG:Ce中低光效率被归因于热火.
- 研究了 (Y) 添加剂以增强热激活能量和减轻火.
研究的目的:
- 为了研究 (Y) 添加剂对GSAG的闪光,光学和发光性能的影响:Ce.
- 了解Y含量与性能特征 (如光效率和衰变时间) 之间的相关性.
- 为了确定GSAG的低性能的主要原因:Ce闪器.
主要方法:
- 微拉向下的方法用于Gd(3-Y Sc2Al3O12:Ce (x = 0, 0.2, 0.5, 0.8) 的晶体生长.
- 取决于温度的光发光衰变动力学和热刺激的光发光量化热火.
- 真空紫外线 (VUV) 激发光谱利用同步子辐射来评估能量传输效率.
主要成果:
- 添加剂在GSAG:Ce.Ce.中没有显著增加热激活能量或改善光产量.
- 热电离被排除为低性能的主要原因;涉及到与有关的缺陷.
- 固体测量GSAG宿主与一致的宿主相比,呈现出更高的光效率.
结论:
- 添加剂的策略在抑制热火和提高GSAG:Ce闪器的性能方面是无效的.
- 与 (Sc) 相关的缺陷在GSAG:Ce.Ce的低最佳性能中起着至关重要的作用.
- 为了优化GSAG:Ce闪电器特性,需要进一步研究宿主固体测量和缺陷工程.
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