通过极地分子构建的分子晶体:探索高性能红外非线性光学晶体的一个有希望的系统
Xin Zhao1,2, Chensheng Lin1, Chao Wang1,2
1Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China.
Angewandte Chemie (International ed. in English)
|January 25, 2024
概括
发现用于先进红外非线性光学 (NLO) 应用的新型极性分子晶体. 像α-P4S5这样的二进制石化晶体显示出强大的第二波生成 (SHG) 和对于IR NLO材料的优秀物理化学特性.
科学领域:
- 材料科学 材料科学 材料科学
- 光学是什么?光学是什么?光学是什么?
- 固态化学 固态化学
背景情况:
- 极地分子晶体提供大次子生成 (SHG) 和双折.
- 它们在红外 (IR) 非线性光学 (NLO) 材料中的应用受限于由于分子间力较弱而具有较差的物理化学特性.
研究的目的:
- 探索具有结构的极性分子晶体,作为优质IR NLO材料的有希望的平台.
- 作为一种潜在的解决方案,引入二元素化分子晶体,特别是[P4Sn] (n=3-9),作为一种潜在的解决方案.
主要方法:
- 用极地子对二元化物分子晶体进行计算选.
- 一个代表性的极性分子晶体α-P4S5.5的合成和表征.
- 对α-P4S5.5的光学和物理化学特性进行评估.
主要成果:
- α-P4S5表现出强烈的SHG响应 (1.1×AGS),宽带间隙 (3.02 eV) 和大的双折 (0.134在2050 nm).
- 该材料显示了广泛的传输范围 (0.4114.7μm).
- α-P4S5具有出色的耐水性和硬度,解决了以前的限制.
结论:
- 具有结构的极性分子晶体是开发高性能IR NLO材料的可行策略.
- α-P4S5代表了显著的进步,展示了可取的光学和物理性质的组合.
- 这项工作为设计基于分子晶体的先进IR NLO材料开辟了新的途径.
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