title: Highly Air-Stable Electron-Transport Material for Ink-Jet-Printed OLEDs.
abstract: A novel cross-linkable electron-transport material has been designed and synthesized for use in the fabrication of solution-processed OLEDs. The material exhibits a low LUMO level of -3.51 eV, a high electron mobility of 1.5×10-5cm2V-1s-1, and excellent stability. An average 9.3 % shrinkage in film thickness was observed for the film after thermal curing. A maximum external quantum efficiency (EQE) of 15.6 % (35.0 cd A-1) was achieved for blue-phosphorescent OLEDs by spin-coating and 13.8 % (31.0 cd A-1) for an ink-jet-printed device, both of which are better than the EQE of a control device prepared by vacuum-deposition (see figure).
authors.affiliation: Printable Electronics Research Center, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou Industrial Park, Suzhou, Jiangsu, 215123, P. R. China.|Department of Chemistry, Shanghai University, 99 Shangda Road, Baoshan District, Shanghai, 200444, P. R. China.
authors.forename: Changting
authors.initials: C
authors.lastname: Wei
authors.affiliation: Printable Electronics Research Center, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou Industrial Park, Suzhou, Jiangsu, 215123, P. R. China. jyzhuang2010@sinano.ac.cn.
authors.forename: Jinyong
authors.initials: J
authors.lastname: Zhuang
authors.affiliation: Department of Chemistry, Shanghai University, 99 Shangda Road, Baoshan District, Shanghai, 200444, P. R. China.
authors.forename: Yali
authors.initials: Y
authors.lastname: Chen
authors.affiliation: Printable Electronics Research Center, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou Industrial Park, Suzhou, Jiangsu, 215123, P. R. China.
authors.forename: Dongyu
authors.initials: D
authors.lastname: Zhang
authors.affiliation: Printable Electronics Research Center, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou Industrial Park, Suzhou, Jiangsu, 215123, P. R. China. wmsu2008@sinano.ac.cn.
authors.forename: Wenming
authors.initials: W
authors.lastname: Su
authors.affiliation: Printable Electronics Research Center, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou Industrial Park, Suzhou, Jiangsu, 215123, P. R. China.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Cui
keywords: electrochemistry; electron transport; luminescence; organic light-emitting diodes; thin films