Photoemission spectroscopy investigation of magnesium-Alq3 interfaces

被引：170

作者：

Rajagopal, A ^{[1
]}

Kahn, A ^{[1
]}

机构：

[1] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA

来源：

JOURNAL OF APPLIED PHYSICS | 1998年 / 84卷 / 01期

关键词：

D O I：

10.1063/1.368035

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The formation of interfaces between magnesium (Mg) and the organic molecular semiconductor tris(8-hydroxy-quinoline) aluminum (Alq(3)) is studied via ultraviolet photoemission spectroscopy. The morphology and electronic structure of Mg-on-Alq(3) and Alq(3)-on-Mg interfaces are compared. The energy of the Alq(3) molecular levels is determined in both cases with respect to a reference Fermi level as a function of interface formation. The difference in injection characteristics between the two interfaces is examined in terms of differences in interface morphology and of electronic gap states induced by the diffusion of Mg at the Mg/Alq(3) interface. (C) 1998 American Institute of Physics.

引用

页码：355 / 358

页数：4

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