Organic electroluminescence cells based on thin films deposited by ultraviolet laser ablation

被引:19
作者
Matsumoto, N [1 ]
Shima, H [1 ]
Fujii, T [1 ]
Kannari, F [1 ]
机构
[1] KEIO UNIV,DEPT ELECT ENGN,KOHOKU KU,YOKOHAMA,KANAGAWA 223,JAPAN
关键词
D O I
10.1063/1.120114
中图分类号
O59 [应用物理学];
学科分类号
摘要
Organic thin films of copper-phthalocyanine (CuPc) and aluminum tris-8-hydroxyquinline (Alq(3)) were fabricated via KrF laser ablation. In spite of poor crystallinity exhibited in the reconstructed organic films, the CuPc film still works as a hole-transport layer in electroluminescence cells based on the CuPc and Alq(3) layers. Electroluminescence at similar to 500 nm-was obtained with a low initiation voltage of similar to 12 V. There is no significant difference in electroluminescence performance for devices fabricated via laser ablation and thermal evaporation. Emission at similar to 600 nm caused by energy transfer from Alq(3) to 4-(Dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran (DCM) is also observed from a DCM-doped Alq(3) emission layer. (C) 1997 American Institute of Physics. [S0003-6951(97)00143-5].
引用
收藏
页码:2469 / 2471
页数:3
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