期刊
ORGANIC ELECTRONICS
卷 3, 期 2, 页码 81-88出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1566-1199(02)00037-X
关键词
MEH-PPV; time-of-flight; morphology; near-field optical microscopy; hole mobility; luminent conjugated polymers
Charge transport in poly[2-methoxy-5-(2'-ethyl-hexyloxy)-1,4-phenylene vinylene] is studied by employing the time-of-flight technique. Film morphology plays a key role in determining the charge transport properties. Samples prepared from toluene feature non-dispersive transport. However, after thermal annealing, charge transport is no longer nondispersive and hole mobility drops for about one order of magnitude. Near-field scanning optical microscope images show that annealing enhanced film inhomogeneity. We propose that the inhomogeneity is responsible for the changes in the transport properties. (C) 2002 Elsevier Science B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据