灵活的Cs5BiP4Se12极性纳米线来自协调复合体之间的弱相互作用:强的非线性光学第二波生成
In Chung1, Jung-Hwan Song, Joon I Jang
1Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA.
Journal of the American Chemical Society
|February 3, 2009
概括
bismuth化物化物 (Cs(5) BiP(4) Se(12)) 自然形成具有显著非线性光学特性的纳米线. 这种材料由于其透明度和强烈的第二波生成响应,对红外应用具有前景.
科学领域:
- 固态化学 固态化学
- 材料科学是一种材料科学.
- 晶体学 晶体学是指结晶学.
背景情况:
- 纳米线材料为光学应用提供了独特的特性.
- 树脂化物化物 (Cs(5) BiP(4) Se(12)) 是一种具有非线性光学潜力的新型化合物.
研究的目的:
- 为了合成和表征Cs(5) BiP(4) Se(12) 纳米线.
- 为了研究Cs{5) BiP{4) Se{12} 的非线性光学 (NLO) 特性和电子结构.
主要方法:
- 单晶X射线衍射用于结构确定.
- 光学光谱测量以评估透明度和频段间隙.
- 测量第二波代 (SHG) 测量.
- 最初的电子结构计算 (FLAPW,LDA,选交换LDA).
主要成果:
- Cs(5) BiP(4) Se(12) 在极地空间组 Pmc2(1) 结晶为纳米线.
- 该材料在近红外和中红外范围内表现出透明度.
- 观察到强烈的非线性光学第二波生成响应,大约是AgGaSe(2) 的两倍.
- 确定了1.85 eV的几乎直接的带间隙.
- 电子结构计算与带间隙和纳米线形态相关联.
结论:
- Cs(5) BiP(4) Se(12) 是在红外频谱中非线性光学应用的一个有前途的材料.
- 独特的纳米线结构有助于其卓越的光学性能.
- 对Cs{5) BiP{4) Se{12) 的进一步研究可能会导致光学设备的进步.
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