title: Bent ladder-type hexaphenylene with carbazole core and spiro linkage as stable and efficient blue emitter.
abstract: A bent ladder-type hexaphenylene with a carbazole core and spiro-linkage is designed and synthesized by using the ortho-linked spirobifluorene. The design eliminates the possibility of forming a positional isomer. As a blue-emitter, the BLHPC shows good thermal and color stability. A simple light-emitting device fabricated from BLHPC exhibits a maximum current efficiency of 1.46 cd/A and a maximum luminance of 505 cd/m(2).
authors.affiliation: Department of Chemistry, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Wuhan University, Wuhan 430072, PR China.
authors.forename: Zuoquan
authors.initials: Z
authors.lastname: Jiang
authors.forename: Haiqing
authors.initials: H
authors.lastname: Yao
authors.forename: Zhongyin
authors.initials: Z
authors.lastname: Liu
authors.forename: Chuluo
authors.initials: C
authors.lastname: Yang
authors.forename: Cheng
authors.initials: C
authors.lastname: Zhong
authors.forename: Jingui
authors.initials: J
authors.lastname: Qin
authors.forename: Gui
authors.initials: G
authors.lastname: Yu
authors.forename: Yunqi
authors.initials: Y
authors.lastname: Liu