title: 2-Phenylpyrimidine skeleton-based electron-transport materials for extremely efficient green organic light-emitting devices.
abstract: 2-Phenylpyrimidine skeleton-based multifunctional electron-transport materials are designed and synthesized. By using these materials and green phosphorescent emitter, fac-tris(2-phenylpyridine)iridium [Ir(ppy)(3)], extremely efficient green organic light-emitting devices are developed. The devices show the efficiencies of 128 lm W(-1) (105 cd A(-1)) at 100 cd m(-2) and 96 lm W(-1) (99 cd A(-1)) at 1000 cd m(-2).
authors.affiliation: Department of Organic Device Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata, 992-8510, Japan.
authors.forename: Hisahiro
authors.initials: H
authors.lastname: Sasabe
authors.forename: Takayuki
authors.initials: T
authors.lastname: Chiba
authors.forename: Shi-Jian
authors.initials: SJ
authors.lastname: Su
authors.forename: Yong-Jin
authors.initials: YJ
authors.lastname: Pu
authors.forename: Ken-ichi
authors.initials: K
authors.lastname: Nakayama
authors.forename: Junji
authors.initials: J
authors.lastname: Kido