The estimation of electron mobility of 4,7-diphyenyl-1, 10-phenanthroline using space-charge-limited currents

Xu  W; Khizar-Ul-Haq; Bai  YJiang  XYZhang  ZL

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The estimation of electron mobility of 4,7-diphyenyl-1, 10-phenanthroline using space-charge-limited currents

机译：The estimation of electron mobility of 4,7-diphyenyl-1, 10-phenanthroline using space-charge-limited currents

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摘要

The electron mobility of 4,7-diphyenyl-1, 10-phenanthroline (BPhen) at various thicknesses (50-300 nm) has been estimated by using space-charge-limited current measurements. The mobility at bulk property dominant thickness is in excellent agreement with the results from time-offlight methods. For the typical thickness of organic light-emitting devices, the electron mobility of BPhen, 2.8 x 10(-4) cm(2)/V s, at 50 nm is smaller than the value 3.4 x 10(-4) cm(2)/V s at 300 nm (electric field at 0.3 MV/cm). The authors suggest that the lower mobility is caused by the interfacial trap states. (C) 2008 Elsevier Ltd. All rights reserved

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《Solid State Communications》 |2008年第8期|311-314|共4页
作者
Xu W; Khizar-Ul-Haq; Bai YJiang XYZhang ZL;
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作者单位

Shanghai Univ, Dept Mat Sci, Shanghai 201800, Peoples R China;

Shanghai Univ, Minist Educ, Key Lab Adv Display & Syst Applicat, Shanghai 200072, Peoples R China;

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原文格式 PDF
正文语种英语
中图分类固体物理学;
关键词
space-charge-limited current; electron mobility; 4; 7-diphyenyl-1; 10-phenanthroline (BPhen); LIGHT-EMITTING-DIODES; TRANSPORT; DEVICES; ELECTROLUMINESCENCE; TIME;

The estimation of electron mobility of 4,7-diphyenyl-1, 10-phenanthroline using space-charge-limited currents

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