Novel resistance behavior of single-walled carbon nanotubes under large currents

Guangtong Liu; Zheng Liu; Yuanchun Zhao; Wenjun Ma; Kaihong Zheng; Haibo Huang; Lianfeng Sun; Sishen Xi

doi:10.1166/jnn.2009.C156

Novel resistance behavior of single-walled carbon nanotubes under large currents

Guangtong Liu, Zheng Liu, Yuanchun Zhao, Wenjun Ma, Kaihong Zheng, Haibo Huang, Lianfeng Sun, Sishen Xi^*

^*Corresponding author for this work

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

Abstract

The resistance of single-walled carbon nanotube (SWNT) bundles has been investigated by two- terminal measurements. We find that the time dependence of resistance (dR/dt) exhibits different behaviors at different currents. At low currents, a positive dRldt is observed. However, dR/dt shows a negative sign when the applied current exceeds a critical current (Is). I coincides with the current when the sample begins to emit light. The variation of dR/dt can be interpreted as the thermal effects owing to Joule heating in the SWNTs. Our lighting SWNTs sample has a small change in resistance and exhibits high stability.

Original language	English
Pages (from-to)	1357-1360
Number of pages	4
Journal	Journal of Nanoscience and Nanotechnology
Volume	9
Issue number	2
DOIs	https://doi.org/10.1166/jnn.2009.C156
Publication status	Published - Feb 2009
Externally published	Yes

ASJC Scopus Subject Areas

Bioengineering
General Chemistry
Biomedical Engineering
General Materials Science
Condensed Matter Physics

Keywords

Carbon nanotubes
Resistance
Thermal effects.

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10.1166/jnn.2009.C156

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abstract = "The resistance of single-walled carbon nanotube (SWNT) bundles has been investigated by two- terminal measurements. We find that the time dependence of resistance (dR/dt) exhibits different behaviors at different currents. At low currents, a positive dRldt is observed. However, dR/dt shows a negative sign when the applied current exceeds a critical current (Is). I coincides with the current when the sample begins to emit light. The variation of dR/dt can be interpreted as the thermal effects owing to Joule heating in the SWNTs. Our lighting SWNTs sample has a small change in resistance and exhibits high stability.",

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T1 - Novel resistance behavior of single-walled carbon nanotubes under large currents

AU - Liu, Guangtong

AU - Liu, Zheng

AU - Zhao, Yuanchun

AU - Ma, Wenjun

AU - Zheng, Kaihong

AU - Huang, Haibo

AU - Sun, Lianfeng

AU - Xi, Sishen

PY - 2009/2

Y1 - 2009/2

N2 - The resistance of single-walled carbon nanotube (SWNT) bundles has been investigated by two- terminal measurements. We find that the time dependence of resistance (dR/dt) exhibits different behaviors at different currents. At low currents, a positive dRldt is observed. However, dR/dt shows a negative sign when the applied current exceeds a critical current (Is). I coincides with the current when the sample begins to emit light. The variation of dR/dt can be interpreted as the thermal effects owing to Joule heating in the SWNTs. Our lighting SWNTs sample has a small change in resistance and exhibits high stability.

AB - The resistance of single-walled carbon nanotube (SWNT) bundles has been investigated by two- terminal measurements. We find that the time dependence of resistance (dR/dt) exhibits different behaviors at different currents. At low currents, a positive dRldt is observed. However, dR/dt shows a negative sign when the applied current exceeds a critical current (Is). I coincides with the current when the sample begins to emit light. The variation of dR/dt can be interpreted as the thermal effects owing to Joule heating in the SWNTs. Our lighting SWNTs sample has a small change in resistance and exhibits high stability.

KW - Carbon nanotubes

KW - Resistance

KW - Thermal effects.

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Novel resistance behavior of single-walled carbon nanotubes under large currents

Abstract

ASJC Scopus Subject Areas

Keywords

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