| 학회 |
한국고분자학회 |
| 학술대회 |
2007년 가을 (10/11 ~ 10/12, 일산킨텍스) |
| 권호 |
32권 2호 |
| 발표분야 |
분자전자 소재 및 소자 기술(분자전자 부문위원회) |
| 제목 |
Novel Water-Soluble Polyfluorenes as an Electron Injection Layer in PLED for Extremely High Quantum Efficiency |
| 초록 |
Water solubility of conjugated polymers may offer many applications. Potential applications of water-soluble conjugated polymers include the polymer light-emitting diode (PLED) and bio- or chemo-sensors. We synthesized neutral polyfluorenes containing bromo-alkyl groups by Suzuki coupling reaction. Bromo-alkyl side groups in neutral polyfluorenes were quaternized by tri-methyl amine solution. Metal ions were bound on cationic water-soluble polyfuorenes. The characterization, electrochemical properties and optical properties of these novel conjugated polyelectrolytes with bound metal ions are discussed. We also investigated the device performance of PLED. In PLED, novel conjugated polyelectrolyte with bound metal ions was inserted between emissive layer and high-work function cathode. An external quantum efficiency (ηext) of a PLED containing this electron injection layer with metal ion was 4.8 %, approaching to the theoretical maximum external quantum efficiency of about 5 %. |
| 저자 |
오승환1, 박두진1, 나석인1, 이태우2, 김동유1
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| 소속 |
1광주과학기술원, 2삼성종합기술원 |
| 키워드 |
water-soluble conjugated polymer; electron injection; PLEDs
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| E-Mail |
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