| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
| 권호 | 30권 2호 |
| 발표분야 | 분자전자 부문위원회 |
| 제목 | Enhanced electroluminescence and color purity in conjugated polymer with nano-porous morphology |
| 초록 | The luminescent properties of fully conjugated polymers are seriously affected by concentration of the conjugated chains, and the degree of polymer chain packing when fabricated in thin film. In this study, we examined the effect of nano-pore morphology in the emitting layer of Poly[2-methoxy-5-(2’-ethylhexyloxy)-1,4-phenylene vinylene] (MEH-PPV), and to hope that it would prevent polymer chain packing so that effectively decrease interchain interaction caused by interchain species and aggregates. The high luminance is obtained at relatively low current density since the annihilation of singlet excitons can be decreased. The red-shifted emission and red shoulder due to the interchain aggregates and excimers are also suppressed due to the nano-porous morphology, so that the color purity of the devices is greatly improved. Acknowledgement This research was supported by a grant (code #: 05K1510-01210) from ‘Center for Nanostructured Materials Technology’ under ‘21st Century Frontier R&D Programs’ of the Ministry of Science and Technology, Korea. |
| 저자 | 김태호1, 박오옥1, 임상혁2, 유재웅3, 김재경3 |
| 소속 | 1한국과학기술원 생명화학공학과, 2LG화학 기술(연), 3한국과학기술(연) |
| 키워드 | conjugated polymer; interchain interaction; electroluminescence |
