欧2MGe2OS6 (M=Mn,Fe,Co):三种美利石类型稀土氧化基聚质,表现出平衡的非线性光学行为
Nan Zhang1, Xiao Huang1, Wen-Dong Yao1
1School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P. R. China.
Inorganic chemistry
|September 28, 2023
概括
研究人员为中红外非线性光学合成了新型的美利类型稀土氧基聚酸盐. 这些材料表现出有前途的光学带间隙,适度的第二声波代,以及高的激光诱导损伤值.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 非线性光学是非线性光学.
背景情况:
- 金属氧基化物对中红外非线性光学 (NLO) 应用具有前景.
- 稀土元素和过渡金属具有独特的电子特性.
研究的目的:
- 为了合成和描述新型的梅利石类型稀土氧化基质物.
- 研究它们作为中红外NLO材料的潜力.
主要方法:
- 结晶结构的确定 (四边形P4̅21m空间组).
- 光学带间隙测量. 光学带间隙测量.
- 第二个波代 (SHG) 响应评估.
- 激光诱导损伤值 (LIDT) 测试.
- 对于SHG机制的理论计算.
主要成果:
- 合成Eu2MGe2OS6 (M = Mn,Fe,Co) 的化合物.
- 光学频段间隙:2.40 eV (Mn),2.11 eV (Fe),2.14 eV (Co). 在光学频段间隙中,光学频段间隙为2.40 eV (Mn),2.11 eV (Fe),2.14 eV (Co).
- 适度的SHG反应 (0.30.5 × AGS).
- 大型LIDT (2.778.31 × AGS) 的情况.
- [EuOS7]和[MS4]单位对SHG的协同作用.
结论:
- 新的 melilite 类型的氧基聚酸盐是中红外NLO应用的潜在候选者.
- 晶体结构和电子特性有助于它们的NLO性能.
- 这项工作扩展了梅岩结构材料的晶体化学.
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