Raman spectroscopy and conductivity measurements on polymer-multiwalled carbon nanotubes composites

被引：66

作者：

Stéphan, C

Nguyen, TP

Lahr, B

Blau, W

Lefrant, S

Chauvet, O

机构：

[1] Inst Mat Jean Rouxel, Lab Phys Cristalline, F-44322 Nantes 3, France

[2] Univ Dublin Trinity Coll, Dept Phys, Dublin 2, Ireland

来源：

JOURNAL OF MATERIALS RESEARCH | 2002年 / 17卷 / 02期

关键词：

D O I：

10.1557/JMR.2002.0055

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Thin films of poly(methyl methacrylate)-multiwalled nanotubes composites were produced by spin coating using different nanotube concentrations. The materials were characterized by scanning electron microscopy, energy-dispersive x-ray analysis, and Raman spectroscopy to obtain information on the possible interactions between the constituents and to control the homogeneity of the films. Electrical conductivity measurements of the composites, as a function of the nanotube concentration, show a percolation threshold at very low concentration. Also, the J-E characteristics exhibits a nonlinear behavior at low concentration, becoming linear far above the threshold.

引用

页码：396 / 400

页数：5

共 21 条

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