| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관) |
| 권호 |
34권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Polymeric hole- injection layer forhigh-efficiency and long-lifetime organic light-emitting diodes |
| 초록 |
We remarkably improved the luminous efficiency and device lifetime in small moleculeorganic light-emitting diodes by using a blend of polyaniline-based conducting polymer and a perfluorinated ionomer (PFI) as the hole injection layer (HIL). By single spin coating of conducting polymer blends with PFI, the PFI preferentially resides at the film surface and thus the film work function is greatly increased. This self-organized high work function HIL in OLEDs enhances the hole injection from the anode and the electron blocking at the HIL/hole transporting layer and thereby the device luminous efficiency using the solution processed HIL was greatly improved compared with the small molecule HILs. We also find that the HILs greatly improves device lifetime due to the PFI-enriched surface layer. |
| 저자 |
최미리1, 이태우2, 한태희1, 우성훈1, 임경근1, 윤원민1, 권오관1, 박찬언1, 신훈규3, 허달호4, 신경환5, 장정식5
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| 소속 |
1POSTECH, 2POSTECH 신소재공학과, 3National Center for Nanomaterials Technology, 4Research Institute of Chemical & Electronic Materials, 5서울대 |
| 키워드 |
oled; conducting polymer; hole injection layer
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| E-Mail |
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