A donor–acceptor cage for circularly polarized TADF emission.
- Resource Type
- Article
- Authors
- Chen, Lihua; Li, Chenfei; Liu, Zheng-Fei; Kuboi, Yoshiaki; Fu, Enguang; Vargas, Lydia Sosa; Adachi, Chihaya; Mathevet, Fabrice; Zhang, Shaodong
- Source
- Chemical Communications. 2/14/2024, Vol. 60 Issue 13, p1758-1761. 4p.
- Subject
- *DELAYED fluorescence
*ELECTRIC dipole transitions
*MAGNETIC dipole moments
*ELECTRIC dipole moments
- Language
- ISSN
- 1359-7345
Herein, we report the first example of chiral donor–acceptor cage DA-2 displaying efficient circularly polarized thermally activated delayed fluorescence (CP-TADF) with ‖glum‖ values up to 2.1 × 10−3 and PLQY of 32%. A small ΔEST of 0.051 eV and quasi-parallel (= 6°) transition electric and magnetic dipole moments were realized from the through-space charge transfer interaction between the parallelly aligned donor and acceptor in DA-2. This D–A cage configuration has provided a novel design strategy for discovering potential efficient CP-TADF emitters. [ABSTRACT FROM AUTHOR]