Electric-field-induced conductance transition in 8-hydroxyquinoline aluminum (Alq3)

被引:56
作者
Mahapatro, AK [1 ]
Agrawal, R [1 ]
Ghosh, S [1 ]
机构
[1] Jawaharlal Nehru Univ, Sch Phys Sci, New Delhi 110067, India
关键词
D O I
10.1063/1.1778211
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report an electric-field-induced conductance transition from an insulating state to a conducting state in a thin layer of Alq3 sandwiched between two metal electrodes. Field-induced switching behavior with a high on-off ratio of similar to10(5) is observed in the devices, in which the cathode electrode is Al and the anode electrode is varied including Al, Au, and indium tin oxide. The switching behavior is absent in devices in which both electrodes have a high work function, indicating that efficient electron injection has an important role in the electric-field-induced switching behavior of Alq3-based single-layer devices. (C) 2004 American Institute of Physics.
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页码:3583 / 3585
页数:3
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