title: White light-emitting diodes fabricated utilizing hybrid polymer-colloidal ZnO quantum dots.
abstract: White light-emitting diodes (WLEDs) with a hybrid poly N-vinylcarbazole (PVK) and poly(methyl methacrylate) (PMMA) polymer and ZnO quantum dots (QDs) were fabricated by a spin-coating technique. Transmission electron microscopy images showed that the ZnO QDs were predominantly distributed at the circumference of the surface of the PVK polymer. Electroluminescence spectra for hybrid polymer-QD WLEDs showed a broad peak around 600 nm. The Commission Internationale de I'Eclairage chromaticity coordinates of the WLEDs fabricated utilizing hybrid polymer-QD WLEDs at 10 V were (0.39, 0.41), indicative of a white emission. The luminescence mechanisms of the WLEDs are described.
authors.affiliation: Department of Information Display Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791, Korea.
authors.forename: Dong Ick
authors.initials: DI
authors.lastname: Son
authors.forename: Chan Ho
authors.initials: CH
authors.lastname: You
authors.forename: Won Tae
authors.initials: WT
authors.lastname: Kim
authors.forename: Tae Whan
authors.initials: TW
authors.lastname: Kim