Improvement of Efficiency and Brightness of Red Organic Light-Emitting Devices Using Double-Quantum-Well Configuration
MI Rui, CHENG Gang, ZHAO Yi, XIE Wen-Fa, HOU Jing-Ying, DING Tao, LIU Shi-Yong
National Laboratory of Integrated Optical Electronics, Jilin University, Changchun 130023
Department of Materials Science, Jilin University, Changchun 130023
Improvement of Efficiency and Brightness of Red Organic Light-Emitting Devices Using Double-Quantum-Well Configuration
MI Rui;CHENG Gang;ZHAO Yi;XIE Wen-Fa;HOU Jing-Ying;DING Tao;LIU Shi-Yong
National Laboratory of Integrated Optical Electronics, Jilin University, Changchun 130023
Department of Materials Science, Jilin University, Changchun 130023
Abstract： We present red double-quantum-well organic light-emitting devices (DQW-OLEDs), in which N,N-bis-(1-naphthyl)-N,N'-diphenyl-1,1'-biphenyo-4,4'-diamine (NPB) is used as potential barriers and hole transport layer, 4-(dicyanome-thylene)-2-t-butyl-6-(1,1,7,7-thtramethyljulolidyl-9-enyl)-4H-pyran (DCJTB) doped tris (8-hydroxyquinoline) aluminium (Alq3) as potential wells and emitter, undoped Alq3 as electron transport layer, respectively. The turn-on voltage is about 4 V. The maximum brightness and electroluminescent (EL) efficiency of the DQW device can reach 5916 cd m-2 at 16 V and 2.85 cd A-1 at 7 V, respectively. In addition, the EL efficiency of the DQW device is relatively independent of the drive voltage in the range from 5 V to 16 V.
MI Rui;CHENG Gang;ZHAO Yi;XIE Wen-Fa;HOU Jing-Ying;DING Tao;LIU Shi-Yong. Improvement of Efficiency and Brightness of Red Organic Light-Emitting Devices Using Double-Quantum-Well Configuration[J]. 中国物理快报, 2004, 21(3): 556-558.
MI Rui, CHENG Gang, ZHAO Yi, XIE Wen-Fa, HOU Jing-Ying, DING Tao, LIU Shi-Yong. Improvement of Efficiency and Brightness of Red Organic Light-Emitting Devices Using Double-Quantum-Well Configuration. Chin. Phys. Lett., 2004, 21(3): 556-558.
2004, Vol. 21 
