A π-extended benzothiadiazole derivative for a high-efficiency TADF-sensitized fluorescent organic light-emitting diode

Guang-Jin Shi; Ke-Ke Tan; Shu-Yang Liu; Hao Zhang; Hao-Ran Hu; Kun-Peng Wang; Liang-Zhong Xu; Meng Li; Zhi-Qiang Hu

doi:10.1039/d2cc05615a

A π-extended benzothiadiazole derivative for a high-efficiency TADF-sensitized fluorescent organic light-emitting diode

Chem Commun (Camb). 2022 Dec 8;58(98):13596-13599. doi: 10.1039/d2cc05615a.

Authors

Guang-Jin Shi¹, Ke-Ke Tan², Shu-Yang Liu¹, Hao Zhang¹, Hao-Ran Hu¹, Kun-Peng Wang¹, Liang-Zhong Xu¹, Meng Li², Zhi-Qiang Hu¹

Affiliations

¹ Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China. huzhiqiang@qust.edu.cn.
² Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. limeng@iccas.ac.cn.

PMID: 36398678
DOI: 10.1039/d2cc05615a

Abstract

A new fluorescent emitter based on π-extended benzothiadiazole was synthesized. The emitter exhibited a large molar extinction coefficient, a high quantum yield of 98% and a large radiative decay rate of 10⁸ s^-1. Moreover, the obtained TADF-sensitized fluorescent OLED displayed excellent device performance with a high EQE_max of 14.3%.