Enhanced thermal stability in organic light-emitting diodes through nanocomposite buffer layers at the anode/organic interface

被引:30
作者
Grozea, D. [1 ]
Turak, A.
Yuan, Y.
Han, S.
Lu, Z. H.
Kim, W. Y.
机构
[1] Univ Toronto, Dept Mat Sci & Engn, Toronto, ON M5S 3E4, Canada
[2] Luxell Technol Inc, Mississauga, ON L5N 6R8, Canada
关键词
D O I
10.1063/1.2434943
中图分类号
O59 [应用物理学];
学科分类号
摘要
The effect of doped buffer layers at the anode/organic interface in small molecule organic light-emitting diodes was investigated. Appropriate doping of N,N(')-bis(1-naphthyl)-N,N(')-diphenyl-1,1(')-biphenyl-4,4(')-diamine (NPB) and Cu-phthalacyanine (CuPc) layers using LiF or C60 molecules leads to improved interfacial morphology and thermal stability for both standard indium tin oxide or metals anodes, such as Au and Ag. Graded interfaces remain stable at temperatures well above the hole transport layer (i.e., NPB) glass transition temperature. (c) 2007 American Institute of Physics.
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页数:6
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