| 초록 |
The molecular design and synthesis as well as the device performance of two categorized novel organic molecules for highly efficient blue emission in OLEDs will be discussed. The three materials synthesized based on this molecular design protocol are 9,10-bis(3ʹ,5ʹ-diphenylphenyl)anthracene [MAM], 9-(3ʹ,5ʹ-diphenylphenyl)-10-(3ʹʹʹ,5ʹʹʹ-diphenylbiphenyl-4ʹʹ-yl)anthracene [MAT], and 9,10-bis(3ʹʹ,5ʹʹ-diphenylbiphenyl-4ʹ-yl)anthracene [TAT], where M, A, and T denote m-terphenyl, anthracene, and triphenylbenzene, respectively. In particular, TAT has a higher PL fluorescence QE than MADN, and has a Tg more than 30ºC higher than that of MADN. Its color coordinates (0.156, 0.088) meet the NTSC blue standard, and it exhibits an excellent EQE value of 7.18%, about twice that of MADN. |
