文献类型：期刊文献

英文题名：White-light-emitting organic electroluminescent devices with poly-TPD as emitting layer

作者：Yin, Yuehong[1];Lu, Zhaoyue[2];Deng, Zhenbo[3];Liu, Bingguo[1];Mamytbekov, Zhailoo Kydyrovich[4];Hu, Baofu[1]

机构：[1]Henan Polytech Univ, Dept Appl Phys, Sch Phys & Elect Informat Engn, Jiaozuo 454000, Henan, Peoples R China;[2]East China Univ Sci & Technol, Sch Sci, Dept Phys, Shanghai 200237, Peoples R China;[3]Beijing Jiaotong Univ, Inst Optoelect Technol, Key Lab Luminescence & Opt Informat, Minist Educ, Beijing 100044, Peoples R China;[4]Ural Fed Univ, Dept Expt Phys, Ekaterinburg 620002, Russia

年份：2017

卷号：28

期号：24

起止页码：19148

外文期刊名：JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS

收录：;EI(收录号：20173804181029);WOS:【SCI-EXPANDED(收录号:WOS:000415054600098)】；

基金：This project was supported by National Natural Science Foundation of China (Nos. 61274063, 61125505, 61007021, 11204067 and 10874053), Science and Technology Research Project of Henan province (Nos. 092102210242, 092300410215), Key scientific research project of Henan province (17A140018), Exploration project of Henan Polytechnic University (NSFRF140131).

语种：英文

外文关键词：Organic light emitting diodes (OLED) - Electron transport properties

摘要：We report a method to achieve white organic light-emitting diodes (WOLEDs) with poly {N,N'-bis (4-butylphenyl)-N,N'-bis(phenyl)-benzidine} (poly-TPD) as single emitting layer. Monomer emission, excimer and electromer emission are all observed from poly-TPD, and combining them the white light emission with color coordinate of Commission International de L'Eclairage (CIE) (0.37, 0.31) was achieved. Double electron transport layer with apposite thickness 1,3,5-tris(1-phenyl-1H-benzimida-zol-2-yl) benzene (TPBi) (30 nm) and tris(8-hydroxyquinolato) aluminum (Alq3) (20 nm) were introduced to improve the performance of WOLEDs. The brightness reached 1000 cd/m(2) at 22 V with an efficiency of 1.0 cd/A.