| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 봄 (04/12 ~ 04/13, 대전컨벤션센터) |
| 권호 |
37권 1호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Homologous Series of Phenylquinoline-carbazole Main Ligand based on Red Emitting Iridium(III) Complexes for Phosphorescent Organic Light-Emitting Diode |
| 초록 |
New red-emitting phosphorescent Ir(III)complexes,(2-Et-CVz-PhQ)2Ir(pic-N-O) and (3-Et-CVz-PhQ)2Ir(pic-N-O), were synthesized and their applications in PhOLEDs as well as their photophysical, electrochemical and electroluminescent properties were investigated. In order to tune the performance of PhOLEDs containing these substances, the (2-Et-CVz-PhQ) and (3-Et-CVz-PhQ) were prepared and used as main ligands for the synthesis of Ir(III) complexes. The red PhOLEDs with a configuration of ITO/PEDOT:PSS/TCTA/PVK or 3-Et-CVz-PhQ:TPD:OXD-7:Ir complex/cathode were fabricated. The PhOLEDs with (2-Et-CVz-PhQ)2Ir(pic-N-O) and (3-Et-CVz-PhQ)2Ir(pic-N-O) exhibited respective maximum external quantum efficiencies of 4.32 % and 8.74 % along with CIE coordinates of (0.68, 0.28) and (0.62, 0.37), respectively. Furthermore, by introducing a TCTA interlayer, the PhOLEDs showed a slight efficiency roll off of 15 % from a low current density (1 mA/cm2) to a high current density (30 mA/cm2). |
| 저자 |
Thota Giridhar1, N.S. Karthikeyan1, 윤주호1, 제갈영순2, 이재욱3, 진성호1
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| 소속 |
1부산대, 2경일대, 3동아대 |
| 키워드 |
PhOLED; Iridium(III)complex
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| E-Mail |
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