文献类型：期刊文献

英文题名：Bipolar anthracene derivatives containing hole- and electron-transporting moieties for highly efficient blue electroluminescence devices

作者：Huang, Jinhai[1,2];Su, Jian-Hua[1,2];Li, Xin[1,2];Lam, Mei-Ki[3];Fung, Ka-Man[3];Fan, Hai-Hua[3];Cheah, Kok-Wai[3];Chen, Chin H.[3,4];Tian, He[1,2]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China;[3]Hong Kong Baptist Univ, Ctr Adv Luminescence Mat, Dept Phys, Kowloon Tong, Hong Kong, Peoples R China;[4]Shanghai Jiao Tong Univ, Displays & Lighting Ctr, Natl Engn Lab TFT LCD Mat & Technol, Shanghai 200240, Peoples R China

年份：2011

卷号：21

期号：9

起止页码：2957

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY

收录：;EI(收录号：20110813681874);WOS:【SCI-EXPANDED(收录号:WOS:000287369300025)】；

基金：This work was financially supported by NSFC/China, National Basic Research 973 Program and Hong Kong Baptist University.

语种：英文

外文关键词：Anthracene - Hole mobility - Electroluminescence - Luminance - Organic solvents - Light

摘要：A series of bipolar anthracene derivatives containing hole-transporting triphenylamine and electrontransporting benzimidazole moieties were synthesized and characterized. These compounds possess high thermal properties and quantum yield in toluene solution but their photoluminescence spectra are sensitive to the polarity of the solvent. Three types of devices were fabricated to investigate their electron-transporting and hole-transporting as well as light-emitting properties. The electroluminescence spectra for the three derivatives B1, B3 and B4 show that they emit blue light, while the B2-based devices produced white light at a low current density because of the electromer formation. Moreover, a single layer OLED device for B4 exhibited a current efficiency of 3.33 cd A(-1) with a pure blue color of CIE(x,y) of (0.16, 0.16) at 20 mA cm(-2) and a maximum brightness of 8472 cd m(-2) at 8.7 V.