四苯基乙烯室温液晶发光材料的制备与表征

Preparation and characterization of tetraphenylethylene derivative as room temperature liquid crystalline luminescent material

发光液晶兼具发光性能和液晶的有序性,作为一种具有重要应用前景的功能材料而受到研究人员的广泛关注。本工作采用离子自组装法制备了一种兼具聚集诱导发光和液晶性质的四苯基乙烯衍生物(TPE-Chol)。通过吸收光谱、荧光光谱和X射线衍射等实验对TPE-Chol的光物理性质和液晶结构进行了详细研究。实验结果表明,TPE-Chol在室温状态下具有液晶结构,并且表现出典型的聚集诱导发光行为,是一种新型室温液晶发光材料,在液晶显示等领域具有潜在的应用价值。

Luminescent liquid crystals have attracted great attentions as potential functional materials due to their unique luminescence properties and liquid crystal ordering. In this work, a novel tetraphenylethylene derivative(TPE-Chol) with liquid crystalline structure and aggregation-induced emission property was prepared by ionic self-assembly. The photophysical properties and liquid crystalline structure of the complex were investigated by absorption spectra, emission spectra and X-ray diffraction. The experimental results show that the TPE-Chol has the typical aggregation-induced emission property and liquid crystalline phase at room temperature. Therefore, TPE-Chol is a new material with potential application in liquid crystal display and other fields.