Rational Design of Circularly Polarized Luminescent Aggregation-Induced Emission Luminogens (AIEgens): Promoting the Dissymmetry Factor and Emission Efficiency Synchronously
Rational Design of Circularly Polarized Luminescent Aggregation-Induced Emission Luminogens (AIEgens): Promoting the Dissymmetry Factor and Emission Efficiency Synchronously
复制标题
圆偏振发光聚集诱导发射发光体（AIEgens）的合理设计：同步提升不对称因子和发射效率
DOI：
10.1021/acsmaterialslett.0c00063
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发表时间：
2020-05-04
影响因子：
11.4
通讯作者：
Tang, Ben Zhong
中科院分区：
文献类型：
--
作者：
Wu, Yue;You, Li Hong;Tang, Ben Zhong
开发具有强发射和高发光不对称因子（g（lum））的圆偏振发光（CPL）材料是高度期望的。通过将AIEgen二氰基二苯乙烯基苯（DCS）引入手性分子胆固醇中，成功构建了一系列具有CPL活性的聚集诱导发光（AIE-gens）。得益于其典型的AIE特性，DCS在冷凝状态下的排放效率高达73.7%。此外，胆固醇单元确保在句法上形成手性液晶，并将CPL的g（Ium）值从非晶态的7 X 10（-4）增加到液晶态的1.1 X 10（-1）。这种方法为很好地解决主要缺陷铺平了一般途径：高g（lum）总是受到发射效率的抑制。
Development of circularly polarized luminescent (CPL) materials with strong emission and high dissymmetry factor of luminescence (g(lum)) is highly desirable. A series of CPL-active aggregation-induced emission luminogens (AIE-gens) have been successfully constructed by incorporating AIEgen dicyanodistyrylbenzene (DCS) into chiral molecule cholesterol. Benefiting from its typical AIE characteristic, DCS allows emission efficiency up to 73.7% in a condensed state. Furthermore, cholesterol units ensure forming chiral liquid crystal in syntax, and increasing the g(lum) value of CPL from 7 x 10(-4) for the amorphous state to 1.1 x 10(-1) for the liquid crystal state. This approach paves a general avenue for addressing the major defect well: high g(lum) always suffers from suppression of emission efficiency.