Circularly Polarized Organic Room Temperature Phosphorescence from Amorphous Copolymers
Circularly Polarized Organic Room Temperature Phosphorescence from Amorphous Copolymers
复制标题
无定形共聚物的圆偏振有机室温磷光
DOI：
10.1021/jacs.1c08118
复制
发表时间：
2021-10-27
影响因子：
15
通讯作者：
Zhao, Yanli
中科院分区：
文献类型：
--
作者：
Gu, Long;Ye, Wenpeng;Zhao, Yanli
具有圆偏振发射和持久发光特性的有机光电功能材料代表了一个新的研究前沿，在数据加密、显示、生物成像等方面显示出广阔的应用前景。在此，我们提出了一种简单而通用的方法，通过自由基交联聚合将轴向手性发色团掺入聚合物链中，从无定形共聚物中获得圆偏振有机磷光（CPP）。我们的实验数据表明，在环境条件下，共聚物(R/S)-PBNA的最大CPP效率为30.6%，最大不对称因子为9.4 x 10(-3)，共聚物(R/S)-PNA的最长寿命为0.68 s。考虑到这些共聚物的 CPP 特性，它们在多种信息加密和显示方面的潜在应用分别得到了证明。这些发现不仅为开发具有优异CPP的非晶聚合物奠定了基础，而且拓展了室温磷光材料的前景。
Organic optoelectronic functional materials featuring circularly polarized emission and persistent luminescence represent a novel research frontier and show promising applications in data encryption, displays, biological imaging, and so on. Herein, we present a simple and universal approach to achieve circularly polarized organic phosphorescence (CPP) from amorphous copolymers by the incorporation of axial chiral chromophores into polymer chains via radical cross-linked polymerization. Our experimental data reveal that copolymers (R/S)-PBNA exhibit a maximum CPP efficiency of 30.6% and the largest dissymmetric factor of 9.4 x 10(-3) and copolymers (R/S)-PNA show the longest lifetime of 0.68 s under ambient conditions. Given the CPP property of these copolymers, their potential applications in multiple information encryption and displays are demonstrated, respectively. These findings not only lay the foundation for the development of amorphous polymers with superior CPP but also expand the outlook of room-temperature phosphorescent materials.