Binaphthol-based chiral host molecules for efficient solution-processed circularly polarized OLEDs?
Chemical Communications Pub Date: 2023-01-11 DOI: 10.1039/D2CC06420K
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.
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Journal Name：Chemical Communications
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CAS no.: 89640-58-4
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