9-(1-Naphthalenyl)-10-(4-(2-naphthalenyl)phenyl)anthracene (BH) could be used as a blue host in the fabrication of blue OLED device. BH is a host material with a high molecular weight and a gre at steric hindrance by introducing bulky aromatic rings and rigid cardo structure, and BH have a high thermal stability (Tg of 131 °C; Tm of 274 °C; and Td of 367 °C).
With a ET of 1.50 eV, BH is a very popular blue fluorescent host material due to its large band gap (Eg = 3.0 eV).
OLED Device Performance
1. Ag (100 nm)/TBPDA: TECTFCNBN(97:3,10 nm)/TBPDA (z nm)/BDFTPA (10 nm)/BH: BDFDPPDA (95:5, 20 nm)/NAPIZ: LiQ (50:50, 35 nm)/Yb (1.5 nm)/Ag:Mg = 9:1 (16 nm)/TBPDA (65 nm).
Color: blue
CIEx,y: (0.1400, 0.0399)
Blue index: 139.9
Current efficiency: 5.58 Cd/A
2. ITO/HATCN (5 nm)/DBPTPPB(100 nm)/TPN-DBF (10 nm)/BH:BTBF-DPh = 25:1 (40 nm)/ANT-BIZ (40 nm)/Liq (2.5 nm)/Al (100 nm)
Color: blue
CIEx,y: (0.151, 0.069)
Max. CE: 2.96 Cd/A
Max. EQE: 4.23 %
3. ITO (150 nm)/HAT-CN (10 nm)/TBPDIA (60 nm)/DFBDDbA (10 nm)/BH:BD (5 wt%) (25 nm)/NAPI:LiQ = 1:1 (35 nm)/Al (80 nm).
Color: blue
CIEx,y: (0.1288, 0.1581)
Lifetime: 277 h at 10 mA cm-2
Max. EQE: 7.15 %
Max. CE: 8.52 Cd/A
4. ITO/HATCN (5 nm)/LHT001 (30 nm)/LEB001 (5 nm)/BD (10%):BH (20 nm)/LET003 (30 nm)/Liq (2 nm)/Al and nondoped structure ITO/HATCN (5 nm)/NPB (50 nm)/BD (20 nm)/LET003 (30 nm)/Liq (2 nm)/Al
Color: blue
CIEx,y: (0.16, 0.06)
Max. EQE: 4.01 %
Max. CE: 3.09 Cd/A
Max. PE: 2.56 Cd/A
EL FWHM: 51 nm', '9-(1-Naphthalenyl)-10-(4-(2-naphthalenyl)phenyl)anthracene is a fluorescent organic compound used as a hole transport layer or an emissive layer in OLED devices, organic photovoltaics (OPVs), organic field-effect transistors (OFETs) and perovskite solar cells.
