Chin. Phys. Lett.  2005, Vol. 22 Issue (3): 727-729    DOI:
Original Articles |
High-Efficient Organic Light-Emitting Diodes Using Indium Tin Oxide Treated by KMnO4 Solution as Anode
WANG Jing;LU Lin1,2; JIANG Wen-Long1,2;ZHANG Ying-Fang1;ZHAO Yi1;HOU Jing-Ying1; LIU Shi-Yong1
1National Laboratory of Integrated Optoelectronics, Jilin University, Changchun 130023 2Department of Electronic Information and Engineering, Jilin Normal University, Siping 136000
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WANG Jing, LU Lin, JIANG Wen-Long et al  2005 Chin. Phys. Lett. 22 727-729
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Abstract High-efficient organic light-emitting diodes (OLEDs) with indium-tin-oxide (ITO) anode treated by KMnO4 solution are demonstrated. The performance of the OLEDs depends on the concentration of KMnO4 solution and time of ultrasonic treatment. The OLED whose ITO anode was treated by ultrasonic in KMnO4 solution with concentration of 50mg/L for 15min displays the best performance. It has higher electroluminescent brightness and lower turn-on voltage than those of traditional devices. In particular, its efficiency can be increased by approximately 40%. The surfaces of the ITO anode with and without treating are analysed by scanning electron microscopy.
Keywords: 78.60.Fi      85.60.Jb     
Published: 01 March 2005
PACS:  78.60.Fi (Electroluminescence)  
  85.60.Jb (Light-emitting devices)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2005/V22/I3/0727
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WANG Jing
LU Lin
JIANG Wen-Long
ZHANG Ying-Fang
ZHAO Yi
HOU Jing-Ying
LIU Shi-Yong
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