title: Efficient phosphorescent polymer yellow-light-emitting diodes based on solution-processed small molecular electron transporting layer.
abstract: Based on a solution-processed small molecular electron transporting layer, efficient multilayer solution-processed polymer yellow-light-emitting diodes were successfully fabricated. The maximum luminance efficiency and power efficiency reached 41.7 cd/A and 12.5 lm/W, respectively, which are comparable to and even over those from the PLEDs based on the vacuum-deposited electron-transporting layer. The solution-processed small molecular electron transporting layer is based on a mixture of three electron-transporting materials TmPyPB, TAZ, and TPBI. By utilization of this mixed system, not only the thickness of the electron-transporting layer can be easily adjusted, but also device efficiency can be improved because of their excellent synthetic properties.
authors.affiliation: State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Graduate School of Chinese Academy of Sciences, Changchun 130022, P. R. China.
authors.forename: Tengling
authors.initials: T
authors.lastname: Ye
authors.forename: Shiyang
authors.initials: S
authors.lastname: Shao
authors.forename: Jiangshan
authors.initials: J
authors.lastname: Chen
authors.forename: Lixiang
authors.initials: L
authors.lastname: Wang
authors.forename: Dongge
authors.initials: D
authors.lastname: Ma