title: Simple bipolar molecules constructed from biphenyl moieties as host materials for deep-blue phosphorescent organic light-emitting diodes.
abstract: Simple is good! Based on biphenyl molecules, two bipolar host materials with high triplet energies have been rationally designed, synthesized, and fully characterized. Deep blue phosphorescent organic light-emitting diodes, which employ the new hosts and an iridium(III) complex as triplet emitter, show a maximum current efficiency of 40 cd A(-1), a maximum power efficiency of 36 lm W(-1), and a maximum external quantum efficiency of 19.5 %.
authors.affiliation: Department of Chemistry, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Wuhan University, PR China.
authors.forename: Cong
authors.initials: C
authors.lastname: Fan
authors.forename: Fangchao
authors.initials: F
authors.lastname: Zhao
authors.forename: Pei
authors.initials: P
authors.lastname: Gan
authors.forename: Sifen
authors.initials: S
authors.lastname: Yang
authors.forename: Tengxiao
authors.initials: T
authors.lastname: Liu
authors.forename: Cheng
authors.initials: C
authors.lastname: Zhong
authors.forename: Dongge
authors.initials: D
authors.lastname: Ma
authors.forename: Jingui
authors.initials: J
authors.lastname: Qin
authors.forename: Chuluo
authors.initials: C
authors.lastname: Yang