Influence of triton X-100 on the characteristics of carbon nanotube field-effect transistors

Jingqi Li; Qing Zhang; Hong Li; Mary B. Chan-Park

doi:10.1088/0957-4484/17/3/009

Influence of triton X-100 on the characteristics of carbon nanotube field-effect transistors

Jingqi Li^*, Qing Zhang, Hong Li, Mary B. Chan-Park

^*Corresponding author for this work

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

23 Scopus citations

Abstract

Triton X-100 is used as a surfactant to disperse carbon nanotube (CNT) bundles. Its influence on the transfer characteristics of carbon nanotube field-effect transistors (CNTFETs) fabricated with the dispersed CNTs by the AC dielectrophoresis technique has been studied. We find that the surfactant at the interface between the CNTs and Au electrodes can change the work function of the electrodes and therefore convert the CNTFETs from typical p-type to having ambipolar characteristics. The adsorbed surfactant between the CNTs and SiO₂ results in a significant hysteresis in the transfer characteristics of the CNTFETs.

Original language	English (US)
Pages (from-to)	668-673
Number of pages	6
Journal	Nanotechnology
Volume	17
Issue number	3
DOIs	https://doi.org/10.1088/0957-4484/17/3/009
State	Published - Feb 14 2006
Externally published	Yes

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

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10.1088/0957-4484/17/3/009

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abstract = "Triton X-100 is used as a surfactant to disperse carbon nanotube (CNT) bundles. Its influence on the transfer characteristics of carbon nanotube field-effect transistors (CNTFETs) fabricated with the dispersed CNTs by the AC dielectrophoresis technique has been studied. We find that the surfactant at the interface between the CNTs and Au electrodes can change the work function of the electrodes and therefore convert the CNTFETs from typical p-type to having ambipolar characteristics. The adsorbed surfactant between the CNTs and SiO2 results in a significant hysteresis in the transfer characteristics of the CNTFETs.",

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AU - Li, Hong

AU - Chan-Park, Mary B.

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Y1 - 2006/2/14

N2 - Triton X-100 is used as a surfactant to disperse carbon nanotube (CNT) bundles. Its influence on the transfer characteristics of carbon nanotube field-effect transistors (CNTFETs) fabricated with the dispersed CNTs by the AC dielectrophoresis technique has been studied. We find that the surfactant at the interface between the CNTs and Au electrodes can change the work function of the electrodes and therefore convert the CNTFETs from typical p-type to having ambipolar characteristics. The adsorbed surfactant between the CNTs and SiO2 results in a significant hysteresis in the transfer characteristics of the CNTFETs.

AB - Triton X-100 is used as a surfactant to disperse carbon nanotube (CNT) bundles. Its influence on the transfer characteristics of carbon nanotube field-effect transistors (CNTFETs) fabricated with the dispersed CNTs by the AC dielectrophoresis technique has been studied. We find that the surfactant at the interface between the CNTs and Au electrodes can change the work function of the electrodes and therefore convert the CNTFETs from typical p-type to having ambipolar characteristics. The adsorbed surfactant between the CNTs and SiO2 results in a significant hysteresis in the transfer characteristics of the CNTFETs.

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Influence of triton X-100 on the characteristics of carbon nanotube field-effect transistors

Abstract

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