Organic Light-Emitting Diodes with Magnesium Doped CuPc as an Efficient Electron Injection Layer |
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| Authors: | CAO Jun-Song GUAN Min CAO Guo-Hua ZENG Yi-Ping LI Jin-Min QIN Da-Shan |
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| Institution: | [1]Novel Materials Laboratory, Institute of Semiconductors, Chinese Academy of Sciences, PO Box 912, Beijing 100083 [2]Institute of Polymer Science and Engineering, Hebei University of Technology, Tianjin 300130 |
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| Abstract: | Bright organic electroluminescent devices are developed using a metal-doped organic layer intervening between the cathode and the emitting layer. The typical device structure is a glass substrate/indium-tin oxide (ITO)/copperphthalocyanine (CuPc)/N,N'-bis-(1-naphthl)-diphenyl-1,1'-biphenyl-4,4'-diamine (NPB)/Tris(8-quinolinolato) alu\-minum(Alq3)/Mg-doped CuPc/Ag. At a driving voltage of 11V, the device with a layer of Mg-doped CuPc (1:2 in weight) shows a brightness of 4312cd/m2 and a current efficiency of 2.52cd/A, while the reference device exhibits 514cd/m2 and 1.25cd/A. |
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| Keywords: | 78 60 Fi 85 60 Jb |
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