Simple bipolar molecules constructed from biphenyl moieties as host materials for deep-blue phosphorescent organic light-emitting diodes

Cong Fan; Fangchao Zhao; Pei Gan; Sifen Yang; Tengxiao Liu; Cheng Zhong; Dongge Ma; Jingui Qin; Chuluo Yang

doi:10.1002/chem.201103703

Simple bipolar molecules constructed from biphenyl moieties as host materials for deep-blue phosphorescent organic light-emitting diodes

Chemistry. 2012 Apr 27;18(18):5510-4. doi: 10.1002/chem.201103703. Epub 2012 Mar 20.

Authors

Cong Fan¹, Fangchao Zhao, Pei Gan, Sifen Yang, Tengxiao Liu, Cheng Zhong, Dongge Ma, Jingui Qin, Chuluo Yang

Affiliation

¹ Department of Chemistry, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Wuhan University, PR China.

PMID: 22434573
DOI: 10.1002/chem.201103703

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 %.