화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2013년 봄 (04/11 ~ 04/12, 대전컨벤션센터)
권호 38권 1호
발표분야 고분자가공/복합재료
제목 High brightness AC Electroluminescence with Colloidal Quantum Dot Hybrids
초록 We report a robust and efficient route for both color mixing and tuning of field induced EL based on solution-processed colloidal QDs and their hybrids with fluorescent polymers. A novel field-induced EL device was demonstrated containing a thin organic/inorganic hybrid nanocomposite film of colloidal CdSe-ZnS core-shell type QDs blended in a light emitting polymer matrix together with homogeneous incorporation of a small amount of SWNTs. Cooperative emission of the two light emitting materials due to unique phase segregated microstructure resulted in extremely bright AC EL. Furthermore, the hybrid AC EL device which featured an emissive layer composed of a blue polymer and orange QDs exhibited effective color mixing, giving rise to high performance AC white EL. Our simple device platform afforded facile preparation of the hybrid nanocomposite film by spin coating and enabled fabrication of a reliable AC EL device capable of color tuning by control of the blend composition.
저자 조성환, 박철민
소속 연세대
키워드 Colloidal Quantum Dot; AC EL; Nanohybrid
E-Mail