TY  - JOUR
T1  - High-efficiency blue OLED host materials based on new anthracene-dibenzofuran derivatives
AU  - Park, Sangwook
AU  - Lee, Changmin
AU  - Kwon, Hyukmin
AU  - Oh, Saeyoung
AU  - Lee, Kiho
AU  - Kang, Seokwoo
AU  - Lee, Hayoon
AU  - Park, Jongwook
JO  - Journal of Luminescence
VL  - 280
SP  - 121106
PY  - 2025
DA  - 2025/05/01/
SN  - 0022-2313
DO  - https://doi.org/10.1016/j.jlumin.2025.121106
UR  - https://www.sciencedirect.com/science/article/pii/S0022231325000468
AB  - 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.
ER  -