학회 | 한국고분자학회 |
학술대회 | 2005년 봄 (04/14 ~ 04/15, 전경련회관) |
권호 | 30권 1호, p.301 |
발표분야 | 분자전자 부문위원회 |
제목 | Polymer light-emitting diodes based on a conjugated dendrimer with enhanced electron transporting |
초록 | Fabrication of double-layer polymer light-emitting diodes(PLED) based on emission from phosphorescent molecule tris(2-phenylpyridine)iridium(Ir(ppy)3) doped into a poly(9-vinylcarbazole)(PVK) host with good hole transport ability are reported. The device contains a graded double-layer structure prepared from the PVK, Ir(ppy)3 complex film covered with the dendrimer film because the dendrimer second layer was prepared by spin-coating from a solvent that only swells the PVK, Ir(ppy)3 complex film. The EL quantum efficiency is significantly enhanced in comparison with the devices based on a single layer. |
저자 | 이행근, 김태호, 박오옥 |
소속 | 한국과학기술원 |
키워드 | dendrimer; polymer light-emitting diode; external quantum efficiency; poly(9-vinylcarbazole); iridium complex |