| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
23권 2호 |
| 발표분야 |
포스터_디스플레이 |
| 제목 |
Photophysical Investigation on the non-radiative processes and PHOLED Performance of Homoleptic Ir(III) Complexes with N-dibenzothiophenyl-N-imidazole ligands |
| 초록 |
To develop new type of Ir(III) complexes as a blue-phosphorescent dopant in the organic light-emitting diode (OLED) devices, we designed C^C-coordinated N-heterocyclic carbene Ir(III) complex isomers (fac-IrSiPr (f-IrSiPr), mer-IrSiPr (m-IrSiPr) and mer-IrSMe (m-IrSMe). The single-crystals of f-IrSiPr and m-IrSiPr were analyzed to get the structural information by X-ray crystallography. The IrS showed the blue phosphorescence at around 450 nm at 300 K, which were slightly red-shifted with increasing solvent polarity. At 77 K, the emission spectra showed the small rigidochromic shifts of ca. 4 nm. Density functional theory (DFT) was applied to study the molecular structure, the energy level, and the orbital distribution. Time-dependent DFT calculation also performed to assign the optical transitions. |
| 저자 |
백창현, 윤보선, 나수원, 최민수, 조대원, 강상욱, 손호진
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| 소속 |
고려대 |
| 키워드 |
imidazole; homoleptic; OLED
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| E-Mail |
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