Magnetic nanoparticle-based separation of metallic and semiconducting carbon nanotubes

Hyung Joon Kim; Sungsic Hwang; Jeseung Oh; Young Wook Chang; Eun Kyung Lim; Seungjoo Haam; Chul Sung Kim; Kyung Hwa Yoo

doi:10.1088/0957-4484/22/4/045703

Magnetic nanoparticle-based separation of metallic and semiconducting carbon nanotubes

Hyung Joon Kim, Sungsic Hwang, Jeseung Oh, Young Wook Chang, Eun Kyung Lim, Seungjoo Haam, Chul Sung Kim, Kyung Hwa Yoo

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

We report a simple and scalable method for the separation of semiconducting single-walled carbon nanotubes (SWNTs) from metallic SWNTs using magnetic nanoparticles (MNPs) functionalized with polycationic tri-aminated polysorbate 80 (TP80). MNPs-TP80 are selectively adsorbed on acid-treated semiconducting SWNTs, which makes the semiconducting SWNTs be highly concentrated to over 95% under a magnetic field. Almost all the field effect transistor network devices, which were fabricated using separated semiconducting SWNTs, exhibited a p-type semiconducting behavior with an on/off ratio of higher than 10⁴.

Original language	English
Article number	045703
Journal	Nanotechnology
Volume	22
Issue number	4
DOIs	https://doi.org/10.1088/0957-4484/22/4/045703
Publication status	Published - 2011 Jan 28

All Science Journal Classification (ASJC) codes

Bioengineering
Chemistry(all)
Materials Science(all)
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

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title = "Magnetic nanoparticle-based separation of metallic and semiconducting carbon nanotubes",

abstract = "We report a simple and scalable method for the separation of semiconducting single-walled carbon nanotubes (SWNTs) from metallic SWNTs using magnetic nanoparticles (MNPs) functionalized with polycationic tri-aminated polysorbate 80 (TP80). MNPs-TP80 are selectively adsorbed on acid-treated semiconducting SWNTs, which makes the semiconducting SWNTs be highly concentrated to over 95% under a magnetic field. Almost all the field effect transistor network devices, which were fabricated using separated semiconducting SWNTs, exhibited a p-type semiconducting behavior with an on/off ratio of higher than 104.",

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AU - Kim, Hyung Joon

AU - Hwang, Sungsic

AU - Oh, Jeseung

AU - Chang, Young Wook

AU - Lim, Eun Kyung

AU - Haam, Seungjoo

AU - Kim, Chul Sung

AU - Yoo, Kyung Hwa

PY - 2011/1/28

Y1 - 2011/1/28

N2 - We report a simple and scalable method for the separation of semiconducting single-walled carbon nanotubes (SWNTs) from metallic SWNTs using magnetic nanoparticles (MNPs) functionalized with polycationic tri-aminated polysorbate 80 (TP80). MNPs-TP80 are selectively adsorbed on acid-treated semiconducting SWNTs, which makes the semiconducting SWNTs be highly concentrated to over 95% under a magnetic field. Almost all the field effect transistor network devices, which were fabricated using separated semiconducting SWNTs, exhibited a p-type semiconducting behavior with an on/off ratio of higher than 104.

AB - We report a simple and scalable method for the separation of semiconducting single-walled carbon nanotubes (SWNTs) from metallic SWNTs using magnetic nanoparticles (MNPs) functionalized with polycationic tri-aminated polysorbate 80 (TP80). MNPs-TP80 are selectively adsorbed on acid-treated semiconducting SWNTs, which makes the semiconducting SWNTs be highly concentrated to over 95% under a magnetic field. Almost all the field effect transistor network devices, which were fabricated using separated semiconducting SWNTs, exhibited a p-type semiconducting behavior with an on/off ratio of higher than 104.

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Magnetic nanoparticle-based separation of metallic and semiconducting carbon nanotubes

Abstract

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