Preparation of Luminescent Thermotropic Liquid Crystal from Benzodiathiazole Derivatives

Yuchen Feng; Huijuan Yu; Dexun Xie; Yi Zhu; Xinhao Zhong; Chengjun Pan; Guang Shao

doi:10.3390/ma12121919

Preparation of Luminescent Thermotropic Liquid Crystal from Benzodiathiazole Derivatives

Materials (Basel). 2019 Jun 14;12(12):1919. doi: 10.3390/ma12121919.

Authors

Yuchen Feng^{1

2}, Huijuan Yu^{3

4}, Dexun Xie^{5

6}, Yi Zhu⁷, Xinhao Zhong⁸, Chengjun Pan⁹, Guang Shao^{10

11}

Affiliations

¹ School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China. Fyuchen96@163.com.
² Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China. Fyuchen96@163.com.
³ School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China. yhjuan@mail.sysu.edu.cn.
⁴ Shenzhen Research Institute, Sun Yat-sen University, Shenzhen 518057, China. yhjuan@mail.sysu.edu.cn.
⁵ School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China. xiedx9@mail.sysu.edu.cn.
⁶ Shenzhen Research Institute, Sun Yat-sen University, Shenzhen 518057, China. xiedx9@mail.sysu.edu.cn.
⁷ Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China. zhuyizhuyi913913@163.com.
⁸ Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China. s1920294@s.tsukuba.ac.jp.
⁹ Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China. pancj@szu.edu.cn.
¹⁰ School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China. shaog@mail.sysu.edu.cn.
¹¹ Shenzhen Research Institute, Sun Yat-sen University, Shenzhen 518057, China. shaog@mail.sysu.edu.cn.

Abstract

Luminescent liquid crystal materials (LLCMs) have been a hot research topic in the field of fluorescent materials. In this study, we successfully designed and synthesized an intense fluorescence thermotropic liquid crystal material with a fluorescence quantum yield (Φ) of 0.26 in the solid state. Moreover, the alkyl chain attached to the terminus of the chromophore was able to promote the stability of electrochemical and thermal properties, which was beneficial to the device fabrication reproducibility and stability of the device performance.

Keywords: Benzo[c][1,2,5]thiadiazole; luminescent liquid crystal materials; solid-state emission.