Simple and Scalable Gel-Based Separation of Metallic and Semiconducting Carbon Nanotubes

被引：277

作者：

Tanaka, Takeshi ^{[1
]}

Jin, Hehua ^{[1
]}

Miyata, Yasumitsu ^{[1
]}

Fujii, Shunjiro ^{[1
]}

Suga, Hiroshi ^{[1
]}

Naitoh, Yasuhisa ^{[1
]}

Minari, Takeo ^{[1
]}

Miyadera, Tetsuhiko ^{[1
]}

Tsukagoshi, Kazuhito ^{[1
]}

Kataura, Hiromichi ^{[1
,2
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Nanotechnol Res Inst, Tsukuba 3058562, Japan

[2] CREST, JST, Kawaguchi, Saitama 3300012, Japan

来源：

NANO LETTERS | 2009年 / 9卷 / 04期

关键词：

DISPERSION; DIELECTROPHORESIS; POLYMERS;

D O I：

10.1021/nl8034866

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report a rapid and scalable method for the separation of metallic and semiconducting single-wall carbon nanotubes (SWCNTs); the separation is performed by the selective adsorption of semiconducting SWCNTs on agarose gel. The most effective separation was realized by a simple procedure in which a piece of gel containing SWCNTs and sodium dodecyl sulfate was frozen, thawed, and squeezed. This process affords a solution containing 70% pure metallic SWCNTs and leaves a gel containing 95% pure semiconducting SWCNTs. Field-effect transistors constructed from the separated semiconducting SWCNTs have been demonstrated to function without any electrical breakdown.

引用

页码：1497 / 1500

页数：4

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