Improved Performances for Organic Light-Emitting Diodes Based on Al2O3-Treated Indium--Tin Oxide Anode
WANG Jing1,2, SONG Rui-Li1, LIU Chun-Ling2, JIANG Wen-Long2, CHEN Shu-Fen1, ZHAO Yi1, HOU Jing-Ying1, LIU Shi-Yong1
1State Key Laboratory of Integrated Optoelectronics, Jilin University, Changchun 130012
2Electronic Information and Engineering Department, Jilin Normal University, Siping 136000
Improved Performances for Organic Light-Emitting Diodes Based on Al2O3-Treated Indium--Tin Oxide Anode
WANG Jing1,2;SONG Rui-Li1;LIU Chun-Ling2;JIANG Wen-Long2;CHEN Shu-Fen1;ZHAO Yi1;HOU Jing-Ying1;LIU Shi-Yong1
1State Key Laboratory of Integrated Optoelectronics, Jilin University, Changchun 130012
2Electronic Information and Engineering Department, Jilin Normal University, Siping 136000
Abstract： Improved performances are obtained in organic light-emitting diodes (OLEDs) based on the indium--tin oxide (ITO) anode processed with ultrasonic in AlAl2O3 polishing solution. By optimizing the AlAl2O3 granularity to 0.6μm and the ultrasonic time to 10min, smoother ITO surfaces are acquired, which lead to the enhanced hole injection, and furthermore, to improving the performance of OLEDs. Compared with the control device without any treatment, the drive voltage of treatment device falls from 9V to 6V at 100cd/m2, the luminance is over three times that of the control device, reaching 25880cd/m2 at 15V, and the luminous efficiency is 3.82cd/A.
2006, Vol. 23 
