| 학회 | 한국공업화학회 |
| 학술대회 | 2022년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 | 26권 1호 |
| 발표분야 | 포스터-디스플레이 |
| 제목 | Highly Efficient Photoluminescence Quantum Yield byMulti-resonance Blue Thermally Activated Delayed Fluorescence Emitters with Asymmetric Amine Substituents. |
| 초록 | In this study, we designed and synthesizedthe new two organic light emitting diode (OLED) materials which called multi-resonancetype thermally activated delayed fluorescence (MR-TADF) for using blue emitterin EML. The reference material DABNA which had triphenylboron with symmetricshape by N atoms caused aggregation by planer form. We introduced asymmetricstructure with other amine substituents to make steric hinderance from DABNA.As a result, all two materials obtained a photoluminescence quantum yield (PLQY)of 90%, one of them obtained PLQY 98%. Also, PL and EL datas showed the only 2nm or not different a full width athalf maximum (FWHM). The device of 3% doped material 2 showed a maximumexternal quantum efficiency of 25.1%, a FWHM of 33 nm, and a color coordinateof (0.104, 0.273). |
| 저자 | 문준영, 이준엽 |
| 소속 | 성균관대 |
| 키워드 | OLED; MR-TADF |
