Improved Performance by Modification of Cathode in Polymer Light-Emitting Diode Based on a Novel Se-Containing Electroluminescent Copolymer
TIAN Ren-Yu1,2, YANG Ren-Qiang1, PENG Jun-Biao1, CAO Yong1
1Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, Guangzhou 510640
2Department of Applied Physics, South China University of Technology, Guangzhou 510640
Improved Performance by Modification of Cathode in Polymer Light-Emitting Diode Based on a Novel Se-Containing Electroluminescent Copolymer
1Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, Guangzhou 510640
2Department of Applied Physics, South China University of Technology, Guangzhou 510640
Abstract： The electroluminescent characteristics of polymer light-emitting diodes (PLEDs) with the structure ITO/PEDOT/ PFO-Selenophene copolymer/cathode were investigated. Various cathodes, such as Al, Li/Al, Ba/Al, LiF/Al and LiF/Ba/Al, were used for testing the device performances. The strongest light output (1112 cd/m2) and the highest quantum efficiency (0.74%) were achieved by using the LiF/Ba/Al cathode. A possible working mechanism for improving the PLED performance was discussed.
TIAN Ren-Yu;YANG Ren-Qiang;PENG Jun-Biao;CAO Yong. Improved Performance by Modification of Cathode in Polymer Light-Emitting Diode Based on a Novel Se-Containing Electroluminescent Copolymer[J]. 中国物理快报, 2003, 20(12): 2255-2258.
TIAN Ren-Yu, YANG Ren-Qiang, PENG Jun-Biao, CAO Yong. Improved Performance by Modification of Cathode in Polymer Light-Emitting Diode Based on a Novel Se-Containing Electroluminescent Copolymer. Chin. Phys. Lett., 2003, 20(12): 2255-2258.
2003, Vol. 20 
