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Authors

HAYOON, LEE

Issue Date

2025-05

Publisher

ELSEVIER

Citation

논문 Journal of Luminescence, v.280, no., pp.121106-

Journal Title

Journal of Luminescence

Volume

280

Start Page

121106

DOI

10.1016/j.jlumin.2025.121106

Abstract

The new compound, 2-(10-(4-(tert-butyl)phenyl)anthracen-9-yl)dibenzo[b,d]furan (DBFtPA), has been designed as a high-efficiency blue host material for organic light-emitting diode (OLED) devices, compared to the commercially available compound 2-(10-phenylanthracen-9-yl)dibenzo[b,d]furan (DBFPA), and has been successfully synthesized. In the film state, these materials exhibited photoluminescence (PL) maxima at 443 nm and 444 nm, and their respective PL quantum yields (PLQY) were 52 % for DBFPA and 54 % for DBFtPA, demonstrating their suitability for blue OLED applications due to their wide band gaps. OLED devices were fabricated using N1,N6-bis(5-(tert-butyl)-2-methylphenyl)-N1,N6-bis(2,4-dimethylphenyl)-pyrene-1,6-diamine (3Me-1Bu-TPPDA) as a dopant, and all devices with DBFPA and DBFtPA as host materials achieved enhanced external quantum efficiencies (EQE) of 7.15 % and 7.26 %, respectively. Particularly, DBFtPA demonstrated outstanding electroluminescence (EL) performance, achieving a current efficiency (CE) of 8.83 cd/A and Commission Internationale de l’Éclairage (CIE) coordinates of (0.13, 0.12), highlighting its potential for superior brightness and color quality in OLED applications.