title: Phosphonate functionalized oxadiazole derivative as an efficient electron transporting material for solution-processed blue electrophosphorescent devices.
abstract: An efficient electron transporting material, P-OXD (1,3-bis[(4-(4-diethylphosphoryl-butyl-phenyl))-1,3,4-oxidiazol-2-yl]phenylene), has been synthesized and thoroughly characterized. Due to its alcohol-soluble nature, P-OXD can be spin-coated atop the light emitting layer to form high quality film without dissolving the underlying layer. As a consequence, the double-layer blue electrophosphorescent device has been successfully fabricated, giving a peak luminous efficiency of 10.5 cd/A, and a maximum brightness of 8200 cd/m² with the Commission Internationale de L'Eclairage (CIE) coordinates of (0.16, 0.33). The promising results indicate that P-OXD has a potential application in solution-processed multilayer polymer light-emitting diodes.
authors: State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
authors: Jianhong
authors: J
authors: Lü
authors: Zhihua
authors: Z
authors: Ma
authors: Bin
authors: B
authors: Meng
authors: Dan
authors: D
authors: Sui
authors: Baohua
authors: B
authors: Zhang
authors: Zhiyuan
authors: Z
authors: Xie
authors: Xiabin
authors: X
authors: Jing
authors: Fosong
authors: F
authors: Wang
authors: Junqiao
authors: J
authors: Ding
authors: Lixiang
authors: L
authors: Wang