Electrical Connectivity in Single-Walled Carbon Nanotube Networks

被引：402

作者：

Nirmalraj, Peter N. ^{[1
,3
]}

Lyons, Philip E. ^{[2
,3
]}

De, Sukanta ^{[2
,3
]}

Coleman, Jonathan N. ^{[2
,3
]}

Boland, John J. ^{[1
,3
]}

机构：

[1] Trinity Coll Dublin, Sch Chem, Dublin 2, Ireland

[2] Trinity Coll Dublin, Sch Phys, Dublin 2, Ireland

[3] Trinity Coll Dublin, CRANN, Dublin 2, Ireland

来源：

NANO LETTERS | 2009年 / 9卷 / 11期

基金：

爱尔兰科学基金会;

关键词：

INDIVIDUAL NANOTUBES; TRANSPARENT; CONDUCTIVITY; FILMS; ABSORPTION; LENGTH;

D O I：

10.1021/nl9020914

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Transport in single-walled carbon nanotubes (SWCNTs) networks is shown to be dominated by resistance at network junctions which scale with the size of the interconnecting bundles. Acid treatment, known to dope individual tubes, actually produces a dramatic reduction in junction resistances, whereas annealing significantly increases this resistance. Measured junction resistances for pristine, acid-treated and annealed SWCNT bundles correlate with conductivities of the corresponding films, in excellent agreement with a model in which junctions control the overall network performance.

引用

页码：3890 / 3895

页数：6

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