Electrical transport measurements of highly conductive carbon nanotube/poly(bisphenol A carbonate) composite

被引：43

作者：

Curran, Seamus A. ^{[1
]}

Talla, Jamal ^{[1
]}

Dias, Sampath ^{[1
]}

Zhang, Donghui ^{[2
]}

Carroll, David ^{[3
]}

Birx, Donald ^{[4
]}

机构：

[1] Univ Houston, Dept Phys, Houston, TX 77004 USA

[2] Louisiana State Univ, Dept Chem, Baton Rouge, LA 70803 USA

[3] Wake Forest Univ, Dept Phys, Winston Salem, NC 27109 USA

[4] Univ Houston, Off Vice Provost Res, Houston, TX 77004 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2009年 / 105卷 / 07期

关键词：

ALTERNATING-CURRENT CONDUCTIVITY; TUNNELING SPECTROSCOPY; ELECTRONIC-STRUCTURE; AC CONDUCTIVITY; THIN-FILMS; NANOTUBES; POLYMER; FUNCTIONALIZATION; TECHNOLOGY; C-60;

D O I：

10.1063/1.3073938

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Acid-treated and pristine chemical vapor deposition grown multiwalled carbon nanotube (MWNT) and poly(bisphenol A carbonate) (PC) composites were prepared through a simple solution blending with varied nanotube weight fractions. The electrical conductivities of the composites can be described by the scaling law based on percolation theory with unprecedented high saturated ac conductivity of pristine nanotubes (sigma(sat)=1598.4 S cm(-1), p(c)=0.19 wt %) and acid-treated nanotubes (sigma(sat)=435.4 S cm(-1), p(c)=0.3 wt %), which correlates well with the dc behavior. We attribute the high saturated conductivities to managing the dispersions, rather than looking to have a well dispersed three-dimensional network thin film. The comparison was made between acid-treated nanotubes and pristine nanotube, both dispersed in PC at various loadings. It was found that the pristine nanotubes in PC possessed an even higher conductivity than the more evenly dispersed composites consisting of lightly acid-treated MWNT in PC. (C) 2009 American Institute of Physics. [DOI:10.1063/1.3073938]

引用

页数：5

共 41 条

[31] Interactions between DNA and a water-soluble C60 derivative studied by surface-based electrochemical methods [J].