| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 봄 (04/11 ~ 04/12, 대전컨벤션센터) |
| 권호 |
38권 1호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
High Efficient Red-Emission Hybrid Polymer Light-Emitting Diodes Using Homogeneous Blend with Analogous Moieties |
| 초록 |
We demonstrate enhanced device performance by Förster energy transfer from green to red emisson in hybrid organic-inorganic polymeric light-emitting diodes (HyPLEDs) with conjugated polymer electrolyte (CPE). A large Förster transfer radius as R0 = 5.32 nm caused from the large overlap between the emission of F8BT as a host and the absorption of F8TBT as a dopant results in the efficient energy transfer. HyPLEDs using F8BT (host materials) with F8TBT concentrations of 2.0 wt. % (dopant materials) show the pure red emission (λMax = 640 nm) with CIE coordinates of (0.62, 0.38) and luminance value of 26,400 cd/m2 (at 12.8 V), luminous efficiency value of 7.14 cd/A (at 12.8 V) and power efficiency value of 1.75 lm/W (at 12.8 V). This efficiency is the highest value among completely pure red-electroluminescence (EL) polymer based light-emitting diodes (LEDs) reported so far. |
| 저자 |
이보람1, 정은재2, 박지선3, 김지선4, 김진영1, 우한영5, 송명훈1
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| 소속 |
1UNIST, 2SMD, 3KETI, 4Imperial College London, 5부산대 |
| 키워드 |
OLED |
| E-Mail |
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