高效的可调色有机共晶揭示了多态,同质,延迟光光学波导和细胞成像的光学波导
Debasish Barman1, Mari Annadhasan2, Anil Parsram Bidkar3
1Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, 781039, India.
Nature communications
|October 20, 2023
概括
研究人员使用扭曲芳香 (TAH) 和受体设计了光功能共晶体. 这些TAH联合晶体表现出可调节的发射,高效的光发射,以及细胞成像中的应用.
科学领域:
- 材料科学 材料科学 材料科学
- 有机化学 有机化学
- 光物理学的光学物理学
背景情况:
- 光功能的共同晶体工程对于开发具有定制光学特性的先进材料至关重要.
- 捐赠者-接受者 π 结合系统可以控制分子包装和固态排放.
- 了解结构-属性关系是光电子和生物应用的关键.
研究的目的:
- 设计和合成基于扭曲芳香 (TAH) 供体和多种平面受体的新型有机联合晶体.
- 研究受体强度对共晶体结构,形态和光学特性的影响.
- 探索这些共同晶体在光学波导和细胞成像等应用中的潜力.
主要方法:
- 共同晶体配方使用一个扭曲的芳香碳化合物供体和三个不同的平面受体.
- 固态发射的特征,分子包装和形态学.
- 研究穿越空间的电荷转移相互作用及其对光学特性的影响.
- 对光发光的量子产量和热激活延迟光 (TADF) 特性进行分析.
主要成果:
- 通过可变包装和电荷转移相互作用,在固体和聚合状态下实现了可调色的发射.
- 观察到结构转变为混合堆叠模式,产生颜色特定的多态.
- 合成了一种具有高光发光量子产量和三重收获TADF特性的cis-isomeric联合晶体.
- 证明了1D微棒联合晶体作为高效的光学波导,具有出色的水分散性.
- 展示了由于高效的细胞内化而具有的明亮细胞成像能力.
结论:
- 开发的共同晶体工程策略为调整TAH基材料的光学特性提供了一条途径.
- 基于碳化合物的TADF材料的发现为光电子应用开辟了新的途径.
- 可分散在水中的微形共晶体显示出生物成像和光子学的前景.
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