| 초록 |
The syntheses and characterization of the conjugated polymer with stabilized blue emission and its derivatives with ketone unit in the main chain, are presented. The OLED with the configuration of ITO/PEDOT:PSS/BEHP-PCPP/Ca/Al generates EL emission with maximum peak at 430 nm, turn-on voltage of 12.0 V, high maximum brightness of 1034 cd/m2 at 15 V, efficiency of 0.11 cd/A at 75 mA/cm2, and CIE coordinates of (x = 0.20, y = 0.16). The device of K1-PCPP (BEHP-PCPP with 1% of ketone unit) showsEL emission with maximum peak at 540nm, CIE coordinates of (x = 0.36, y = 0.57), turn-on voltage of 10.5 V, maximum brightness of 1143 cd/m2, and luminescence efficiency of 0.11 cd/A. The device of K001-PCPP (BEHP-PCPP with 0.01% of ketone unit) showsEL emission with peaks at 430, and 520nm, CIE coordinates of (x = 0.26, y = 0.38) , turn-on voltage of 5.5 V, maximum brightness of 1143 cd/m2, and luminescence efficiency of 0.53 cd/A. |
