Organic semiconductor heterointerfaces containing bathocuproine

被引:136
作者
Hill, IG [1 ]
Kahn, A [1 ]
机构
[1] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA
关键词
D O I
10.1063/1.371395
中图分类号
O59 [应用物理学];
学科分类号
摘要
The four organic-organic heterointerfaces formed by depositing the organic semiconductor bathocuproine on tris(8-hydroxy-quinoline)aluminum (Alq(3)), N,N'-diphenyl-N,N'-bis(1-naphthyl)-1,1' biphenyl-4,4 " diamine (alpha-NPD), 4,4'-N,N'-dicarbazolyl-biphenyl (CBP), and copper phthalocyanine (CuPc) have been studied using ultraviolet photoelectron spectroscopy. The relative positions of the vacuum levels and highest occupied molecular orbital levels of the organics were measured at each interface. Within our experimental uncertainty of 100 meV, the vacuum levels were found to align at all four interfaces. (C) 1999 American Institute of Physics. [S0021-8979(99)04520-X].
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页码:4515 / 4519
页数:5
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