Deep level transient spectroscopy (DLTS) of a poly(p-phenylene vinylene) Schottky diode

被引:45
作者
Campbell, AJ
Bradley, DDC
Werner, E
Brütting, W
机构
[1] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England
[2] Univ Bayreuth, Lehrstuhl Expt Phys 2, D-95440 Bayreuth, Germany
基金
英国工程与自然科学研究理事会;
关键词
deep level transient spectroscopy; charge traps; polymers; poly(phenylene vinylene); electroluminescence; light emitting diodes;
D O I
10.1016/S0379-6779(99)00446-4
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Deep level transient spectroscopy measurements have been carried out on ITO/poly(p-phenylenevinylene)/Al organic light emitting diodes that have a depletion region type Schottky barrier at the polymer/metal interface. The very long lived capacitance transients can be successfully described by the de-trapping of p-type majority carriers from a single energy trap level to a Gaussian distribution of transport states. The Gaussian width of 0.10 +/- 0.02 eV and trap depth of 0.75 +/- 0.05 eV are in excellent agreement with values measured from other unrelated experimental techniques. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:273 / 276
页数:4
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