Issue 11, 2023

Binaphthol-based chiral host molecules for efficient solution-processed circularly polarized OLEDs

Abstract

Two kinds of chiral hosts, named (R/S)-BN-mCP and (R/S)-BN-2mCP, are prepared. Solution processable circularly polarized organic light-emitting diodes (CP-OLEDs) based on the chiral hosts and achiral emitter Ir(mypp)3 present the maximum external quantum efficiency (EQEmax) and dissymmetry factor values (gEL) of 12.7%/−1.7 × 10−3 and 17.1%/−1.3 × 10−3, respectively. Using (R)-BN-2mCP as the chiral host and Ir(mypp)3 and Ir(piq)2(acac) as the achiral emitters, the solution-processed OLED exhibits a broad emission spectrum with the EQEmax of 12.1% and gEL of −1.1 × 10−3.

Graphical abstract: Binaphthol-based chiral host molecules for efficient solution-processed circularly polarized OLEDs

Supplementary files

Article information

Article type
Communication
Submitted
28 Nov. 2022
Accepted
10 Janv. 2023
First published
11 Janv. 2023

Chem. Commun., 2023,59, 1473-1476

Binaphthol-based chiral host molecules for efficient solution-processed circularly polarized OLEDs

Q. Dong, C. Xiao, B. He, X. Yang, S. Zeng, Q. Zhong, P. Duan, W. Zhu and Y. Wang, Chem. Commun., 2023, 59, 1473 DOI: 10.1039/D2CC06420K

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