用于电光和细胞成像的高发射纯有机胺基堆的自组装
Xujun Zheng1,2, Wencheng Zhu3, Chi Zhang4
1Department of Chemistry, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials , Wuhan University , Wuhan 430072 , China.
Journal of the American Chemical Society
|February 28, 2019
概括
一种新的有机分子,TPE-3-stack,使用动态 imine 化学合成. 这种光材料具有独特的固态和溶液排放,与聚合引起的火 (ACQ) 或聚合引起的排放 (AIE) 化合物不同.
科学领域:
- 有机化学
- 材料科学
- 光物理学
背景情况:
- 聚合引起的火 (ACQ) 和聚合引起的排放 (AIE) 是有机染色体中常见的现象.
- 开发稳定,高光的有机材料用于电子设备和成像仍然是一个挑战.
研究的目的:
- 通过动态 imine 化学合成和表征一种全新的纯有机堆,即 TPE-3 堆.
- 研究TPE-3堆在有机电子和生物成像中的光物理特性,稳定性和潜在应用.
主要方法:
- 在TPE-3堆的高产组装中采用了动态胺化学.
- 评估了光发光的量子产量 (PL),光谱,热和化学稳定性.
- 进行了溶液处理电光装置的制造和测试.
- 评估了溶酶体成像能力.
主要成果:
- 在高产量中成功合成了TPE-3.
- 该材料在固态 (PL=83%) 和稀释溶液 (PL=82%在DMSO) 中都表现出强烈的光.
- 与ACQ和AIE染色体相比,它表现出不同的发射行为.
- 观察到高光谱,热和化学稳定性,以及出色的溶解性.
- 一个电光装置实现了> 1000 cd m-2 的亮度和高达 2.3 cd A-1 的电流效率.
- 作为光可视化器,TPE-3-stack显得具有前景.
结论:
- 这种自组合策略有效地抑制了分子内部的旋转和振动,导致了刚性框架和增强的光.
- TPE-3-stack是一种稳定,高光的有机材料,适用于溶液处理的有机发光二极管 (OLED).
- 它的特性使其成为先进生物成像应用的有希望的候选者,特别是溶酶体可视化.
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