LiNbO3:Mg:B不同成分和创世纪晶体缺陷结构的特征
Roman A Titov1, Alexandra V Kadetova1,2, Diana V Manukovskaya1
1Tananaev Institute of Chemistry-Subdivision of the Federal Research Centre "Kola Science Centre of the Russian Academy of Sciences" (ICT KSC RAS), Apatity 184209, Murmansk Region, Russia.
Materials (Basel, Switzerland)
|January 25, 2025
概括
与一起配合酸 (LN) 提高了Mg-doped LN晶体质量. 固相兴奋剂产生最优的LN:Mg:B晶体,缺陷能量最小,增强光调节应用的性能.
科学领域:
- 材料科学 材料科学 材料科学
- 固态物理 固态物理
- 晶体的成长 晶体的成长
背景情况:
- 与 (Mg) 合的酸 (LiNbO3) 晶体对于光调节至关重要.
- 了解剂的行为和缺陷结构是优化晶体特性的关键.
- 之前的研究表明对LiNbO3晶体结构的影响.
研究的目的:
- 为了研究辅助对辅助LiNbO3 (LN:Mg:B) 晶体结构的影响.
- 分析LN:Mg:B晶体中的点结构缺陷和离子定位.
- 为了比较不同的兴奋剂方法,以获得高质量的LN:Mg:B晶体.
主要方法:
- 合成了两系列LN:Mg:B晶体,使用不同的兴奋剂引入阶段.
- 采用X射线衍射 (XRD) 分析来研究晶体结构.
- 利用模型计算来确定的定位和缺陷相互作用.
主要成果:
- 均质的兴奋剂引入了Mg空缺 (MgV) 和Nb空缺 (VNb) 作为补偿缺陷.
- 酸主要位于Nb空缺 (VNbIO6) 附近.
- 固体相兴奋剂产生了LN:Mg:B晶体,库伦相互作用能量最小 (2.57 mol% MgO,0.42 × 10-4 wt% B).
结论:
- 固体相兴奋剂在产生具有理想双兴奋特性的LN:Mg:B晶体方面是优越的.
- 合兴奋剂通过降低值兴奋剂度来完善Mg兴奋剂LN技术.
- 优化的LN:Mg:B晶体具有用于光学应用的增强性质.
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