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Title: Circularly polarized organic room temperature phosphorescence from amorphous copolymers
Authors: Gu, Long
Ye, Wenpeng
Liang, Xiao
Lv, Anqi
Ma, Huili
Singh, Manjeet
Jia, Wenyong
Shen, Zhaocun
Guo, Yi
Gao, Yaru
Chen, Hongzhong
Wang, Dongdong
Wu, Yinglong
Liu, Jiawei
Wang, Hou
Zheng, You-Xuan
An, Zhongfu
Huang, Wei
Zhao, Yanli
Keywords: Science::Chemistry
Engineering::Electrical and electronic engineering
Issue Date: 2021
Source: Gu, L., Ye, W., Liang, X., Lv, A., Ma, H., Singh, M., Jia, W., Shen, Z., Guo, Y., Gao, Y., Chen, H., Wang, D., Wu, Y., Liu, J., Wang, H., Zheng, Y., An, Z., Huang, W. & Zhao, Y. (2021). Circularly polarized organic room temperature phosphorescence from amorphous copolymers. Journal of the American Chemical Society, 143(44), 18527-18535.
Project: NRF-NRFI2018-03
Journal: Journal of the American Chemical Society
Abstract: 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 × 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.
ISSN: 0002-7863
DOI: 10.1021/jacs.1c08118
Rights: © 2021 American Chemical Society. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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