title: Solution-processed white phosphorescent tandem organic light-emitting devices.
abstract: Solution-processed phosphorescent tandem organic light-emitting devices (OLEDs) exhibit extremely high efficiencies (94 cd A(-1) ) and 26% external quantum efficiency (EQE) at 5000 cd m(-2) for green phosphorescent devices and 69 cd A(-1) and 28% EQE at 5000 cd m(-2) for white phosphorescent devices. Development of these highly efficient solution-processed tandem-OLEDs with inverted device structure paves the way to printable, low-cost, and large-area white lighting.
authors.affiliation: Department of Organic Device Engineering, Research Center for Organic Electronics, Yamagata University, 4-3-16 Johnan, Yonezawa, Yamagata, 992-8510, Japan.
authors.forename: Takayuki
authors.initials: T
authors.lastname: Chiba
authors.affiliation: Department of Organic Device Engineering, Research Center for Organic Electronics, Yamagata University, 4-3-16 Johnan, Yonezawa, Yamagata, 992-8510, Japan.
authors.forename: Yong-Jin
authors.initials: YJ
authors.lastname: Pu
authors.affiliation: Department of Organic Device Engineering, Research Center for Organic Electronics, Yamagata University, 4-3-16 Johnan, Yonezawa, Yamagata, 992-8510, Japan.
authors.forename: Junji
authors.initials: J
authors.lastname: Kido
keywords: inverted device structures; organic light-emitting devices; white phosphorescent devices