| 초록 |
We synthesized new bluish-green and sky-blue emitting materials, 1,1,2,2-tetrakis( 40-tert-butylbiphenyl)ethane[TBBPE] and 1,1,2,2-tetrakis(4-(anthracen-9- yl)phenyl)ethene[TAPE]. TBBPE and TAPE film showed PL maximum value of 511nm and 492 nm. TBBPE OLED device showed bluish-green C.I.E. value of (0.236, 0.412) and high luminance efficiency of 5.02 cd=A at 10mA=cm2. TAPE device also showed sky-blue C.I.E. value of (0.213, 0.323) and 3.17 cd=A at 10mA=cm2. It is found that TBBPE shows better luminance efficiency than TAPE and TAPE device exhibits relatively lower operating voltage and better C.I.E. value than TBBPE device. |
