A narrowband blue circularly polarized thermally activated delayed fluorescence emitter with a hetero-helicene structure

Sheng-Yi Yang; Sheng-Nan Zou; Fan-Cheng Kong; Xiang-Ji Liao; Yang-Kun Qu; Zi-Qi Feng; You-Xuan Zheng; Zuo-Quan Jiang; Liang-Sheng Liao

doi:10.1039/d1cc04405b

A narrowband blue circularly polarized thermally activated delayed fluorescence emitter with a hetero-helicene structure

Chem Commun (Camb). 2021 Oct 21;57(84):11041-11044. doi: 10.1039/d1cc04405b.

Authors

Sheng-Yi Yang¹, Sheng-Nan Zou¹, Fan-Cheng Kong¹, Xiang-Ji Liao², Yang-Kun Qu¹, Zi-Qi Feng¹, You-Xuan Zheng², Zuo-Quan Jiang¹, Liang-Sheng Liao^{1

3}

Affiliations

¹ Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, Jiangsu 215123, China. zqjiang@suda.edu.cn.
² School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China. yxzheng@nju.edu.cn.
³ Macao Institute of Materials Science and Engineering, Macau University of Science and Technology, Macau 999078, China.

PMID: 34608910
DOI: 10.1039/d1cc04405b

Abstract

A narrowband blue CP-TADF emitter with a rigid hetero-helicene structure (QAO-PhCz) was synthesized and characterized. QAO-PhCz exhibits good electroluminescence performance (EQE = 14.0%) and narrow FWHM. The enantiomers of QAO-PhCz display CPL and CPEL properties with |g_lum| and |g_EL|values of up to 1.1 × 10^-3 and 1.5 × 10^-3, respectively.