| 학회 |
한국고분자학회 |
| 학술대회 |
2010년 봄 (04/08 ~ 04/09, 대전컨벤션센터) |
| 권호 |
35권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
High efficiency red phosphorescence organic light emitting diodes by utilizing modified Al cathode |
| 초록 |
We report highly efficient solution processed red phosphorescent organic light emitting diodes (PhOLEDs) utilizing (Et-Cvz-PhQ)2Ir(acac) and (EO-Cvz-PhQ)2Ir(acac) into TCTA: PVK (amount of TCTA 20%) matrix that contains the electron transport material of OXD-7. Also, we introduced an ultrathin layer of poly(ethylene oxide) (PEO) as a buffering interface between the emitting layer and the Al cathode. The electroluminescence (EL) spectra show the characteristic spectrum of (Et-Cvz-PhQ)2Ir(acac) and (EO-Cvz-PhQ)2Ir(acac) with its maximum at 625 nm and CIE (Commission International de l’Eclairage) coordinate of (0.66, 0.33). The red emissive PhOLEDs based on ITO/PEDOT:PSS/TCTA:PVK:OXD-7:Ir complex/PEO/LiF/Al cathode exhibit a maximum external quantum efficiency of 4.72 % with corresponding luminance efficiency of 4.62 cd/A, respectively. |
| 저자 |
송명관1, 박진수1, 윤미경1, 김철현1, 진성호1, 이재욱2, 제갈영순3
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| 소속 |
1부산대, 2동아대, 3경일대 |
| 키워드 |
solultion-processed; Red; PEO
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| E-Mail |
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