Conductivity of macromolecular networks measured by electrostatic force microscopy

被引：38

作者：

Lei, CH ^{[1
]}

Das, A ^{[1
]}

Elliott, M ^{[1
]}

Macdonald, JE ^{[1
]}

机构：

[1] Cardiff Univ, Dept Phys & Astron, Cardiff CF24 3YB, S Glam, Wales

来源：

APPLIED PHYSICS LETTERS | 2003年 / 83卷 / 03期

关键词：

D O I：

10.1063/1.1592888

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

High-resolution electrostatic force microscopy (EFM)-phase measurements are reported on molecular networks of semiconductor polymer poly-hexylthiophene (P3HT) and DNA molecules. A lateral resolution of better than 20 nm is demonstrated in EFM-phase images of the P3HT network by detecting the phase shift of the tip along the molecules under electrical bias. Strands of lambda-DNA are shown to be highly insulating in comparison to the semiconductor polymer P3HT, with a minimum resistance of similar to1x10(7) Omega cm. (C) 2003 American Institute of Physics.

引用

页码：482 / 484

页数：3

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