Fabrication of white organic light-emitting devices by physical blending
1.School of Material Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2.Information Technology College, Jilin Normal University, Siping, Jilin 136000, China; 3.Institute of Information and Optoelectronic, Harbin Institute of Technology, Weihai, Shandong 264209, China)
Abstract： Blended the organic fluorescent materials of NPB， Alq3， DPVBi and Rubrene in a certain proportion, new white organic light-emitting devices (OLEDs) was fabricated with the structure of ITO/physical mixed layer(120 nm)/LiF/Al. The effect of Rubrene proportion on the performance of OLEDs was investigated. With the increase of Rubrene proportion, the device has a corresponding color change. The luminescence of the devices is mainly from DPVBi and Rubrene with subordinately from Alq3 .The partial holes from anode are captured by Rubrene and combined with electron to show radioluminescence, and other holes are transferred in NPB. The excitons are formed from the combine of electrons and holes, and transfer from Alq3 to Rubrene, leading in the decrease of radioluminescence of Alq3. The brightness and current efficiency of the devices show regular change with voltage.
韩强, 姚冠新, 王广德, 王静, 姜文龙. 物理共混制备有机白光电致发光器件[J]. 江苏大学学报（自然科学版）, 2011, 32(4): 464-467.
HAN Qiang, YAO Guanxin, WANG Guangde, WANG Jing, JIANG Wenlong. Fabrication of white organic light-emitting devices by physical blending[J]. Journal of Jiangsu University(Natural Science Eidtion)
, 2011, 32(4): 464-467.
2011, Vol. 32 
