title: Achieving highly efficient simple-emission layer fluorescence/phosphorescence hybrid white organic light-emitting devices via effective confinement of triplets.
abstract: Achieving high efficiencies in simple device configurations is a long-standing and meaningful target for organic light-emitting devices (OLEDs). Herein, by utilizing an efficient blue-violet fluorophor (CzS1) that has a high triplet energy of 2.62 eV, the significance of effective confinement of the green triplets in fluorescence/phosphorescence hybrid white devices (F/P-WOLEDs) that have highly simplified emission layers (EMLs) containing only RGB emitters was demonstrated. The non-p-i-n warm-white device exhibited excellent performance with a maximum forward power efficiency high up to 42.1 lm W(-1), and maintaining at 26.3 lm W(1-) at a practical luminance of 1000 cd m(-2).
authors.affiliation: Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Sciences, City University of Hong Kong , Tat Chee Avenue, Hong Kong SAR, P. R. China.
authors.forename: Jun
authors.initials: J
authors.lastname: Ye
authors.forename: Zhan
authors.initials: Z
authors.lastname: Chen
authors.forename: Feifei
authors.initials: F
authors.lastname: An
authors.forename: Mingliang
authors.initials: M
authors.lastname: Sun
authors.forename: Hin-Wai
authors.initials: HW
authors.lastname: Mo
authors.forename: Xiaohong
authors.initials: X
authors.lastname: Zhang
authors.forename: Chun-Sing
authors.initials: CS
authors.lastname: Lee