| 초록 |
The OLED light emitting material has a molecular size corresponding to the nanoscale and is converted into light energy when electrical energy is given. A new green fluorescent dopant material was successfully synthesized using anthracene as the central core and introducing methyl and tert-butyl groups as diphenylamine groups at various positions. The two compounds are N9,N9,N10,N10-tetraphenylanthracene-9,10-diamine (TAD) and N9,N10-bis(4-(tert-butyl)phenyl)-N9,N10-di-o-tolylan Tracene-9, 10-diamine (p-Tb-o-Me-TAD). The synthesized material emits green light with maximum wavelengths of 508 and 523 nm. p-Tb-o-Me-TAD exhibits an excellent PLQY of 86.2% in solution. When the synthesized material was used as a dopant for the device, TAD showed a current efficiency (CE) of 17.71 cd/A and an external quantum efficiency (EQE) of 6.11%. The device using the p-Tb-o-Me-TAD dopant exhibited a current efficiency (CE) of 24.24 cd/A and an external quantum efficiency (EQE) of 7.27%. |
