Nanoscale charge transport in an electroluminescent polymer investigated by conducting atomic force microscopy

被引：70

作者：

Lin, HN ^{[1
]}

Lin, HL

Wang, SS

Yu, LS

Perng, GY

Chen, SA

Chen, SH

机构：

[1] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan

[2] Natl Tsing Hua Univ, Dept Chem Engn, Hsinchu 300, Taiwan

[3] Natl Sci Council, Precis Instrument Dev Ctr, Hsinchu 300, Taiwan

来源：

APPLIED PHYSICS LETTERS | 2002年 / 81卷 / 14期

关键词：

D O I：

10.1063/1.1509464

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report conducting atomic force microscopy study of nanoscale hole transport in an electroluminescent polymer. Imaging of current variation with a spatial resolution of around 20 nm is achieved. Local current-voltage measurements are performed and the mobilities obtained from space-charge-limited current analysis are two orders of magnitude higher than macroscopic results. A Poole-Frenkel plot shows a clear transition at a field of around 1.5x10(6) V/cm, which is consistent with reported values of polaron dissociation field. (C) 2002 American Institute of Physics.

引用

页码：2572 / 2574

页数：3

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