| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 봄 (04/10 ~ 04/11, 대전 컨벤션센터) |
| 권호 |
39권 1호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Charge Transport Enhancement of Organic Light-Emitting Diodes Using ZnO/N-Doped Carbon Nanotube Nanocomposites |
| 초록 |
Wide-bandgap metal oxides with low electrical conductivities reveal limitations in the charge transport enhancement. Nevertheless, we present the remarkable electro-conductivity enhancement of solution processable ZnO charge transport layers upon dispersing a tiny amount of chemically doped CNTs and the corresponding device performance improvement of light-emitting diodes (OLEDs). ZnO/N-CNT nanocomposites transport layer with 0.08 wt% N-CNT showed a five-fold enhancement of electron mobility, while maintaining the intrinsic bandgap energy levels, optical transparency and solution processability of pure ZnO. The inverted OLEDs using ZnO/N-CNT nanocomposites electron transport layer could facilitate well-balanced electron/hole injection and, thus, two-fold enhancement of maximum luminance and efficiency. |
| 저자 |
남수아1, 박지선2, 이주민1, 박형일1, 김상욱1
|
| 소속 |
1KAIST, 2Korea Electronics Technology Institue(KETI) |
| 키워드 |
charge transport; doped CNTs; OLEDs; nanocomposites
|
| E-Mail |
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