Abstract White light-emitting materials arouse widespread interest in optical research in recent years because of their broad application prospects in the fields of display and lighting. However, limited success on white light emission has been achieved in solution which induce it a worthy subject to study. In this article, we regulated the fluorescence color of the solution and achieved the white light emission by adjusting the concentration of the alkynylpyrene derivative 1 and the dye rhodamine-B (RhB), as well as the ratio of the mixed solvents. The results of fluorescence spectrum showed that when the concentrations of 1 and RhB are 40 µM and 50 µM, respectively, white light was achieved in 25% water and 75% DMSO, and the CIE coordinates were (0.33, 0.32). TEM, SEM, fluorescence spectrum, time-resolved fluorescence and other methods were used to observe the morphologies and fluorescence properties of white-light solution, exploring the self-assembly process and mechanism. We also studied the polymerization of white-light solution under 420 nm light irradiation, observed the changes of self-assembly behavior and fluorescence properties. Such white-light solution is expected to be applied to new luminescent materials.

中文翻译：

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用于调制白光的炔基芘衍生物和染料的超分子自组装

摘要 白光发光材料因其在显示和照明领域的广阔应用前景，近年来引起了光学研究的广泛关注。然而，白光发射在解决方案中取得的成功有限，这使其成为一个值得研究的课题。在本文中，我们通过调节炔基芘衍生物1和染料罗丹明-B（RhB）的浓度以及混合溶剂的比例来调节溶液的荧光颜色并实现白光发射。荧光光谱结果表明，当1和RhB的浓度分别为40 μM和50 μM时，在25%的水和75%的DMSO中获得白光，CIE坐标为(0.33, 0.32)。TEM、SEM、荧光光谱、采用时间分辨荧光等方法观察白光溶液的形貌和荧光性质，探索其自组装过程和机制。我们还研究了白光溶液在 420 nm 光照射下的聚合，观察了自组装行为和荧光性质的变化。这种白光解决方案有望应用于新型发光材料。