Radiofrequency field absorption by carbon nanotubes embedded in a conductive host

Mikhail V. Shuba; Gregory Ya Slepyan; Sergey A. Maksimenko; George W. Hanson

doi:10.1063/1.3516480

Radiofrequency field absorption by carbon nanotubes embedded in a conductive host

Mikhail V. Shuba
, Gregory Ya Slepyan
, Sergey A. Maksimenko
, George W. Hanson

Belarusian State University
University of Wisconsin-Milwaukee

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

41 Scopus citations

Abstract

Understanding the electromagnetic response of carbon nanotubes (CNTs) in the radio frequency range is very important for experimental development of therapeutic and diagnostic CNT applications, including selective thermolysis of cancer cells and thermoacoustic imaging. In this study, we present the theory of electromagnetic wave scattering by several finite length CNT configurations, including singlewall CNT's having a surfactant coating, CNT bundles, and multiwall CNTs. Absorption cross-sections of these structures in a conductive host region are theoretically studied in the radio frequency range. Strong local field enhancement due to edge effects is predicted to be inherent to metallic singlewall CNTs in the near-field zone, providing an additional mechanism of energy dissipation in a conductive host. Due to the screening effect the application of singlewall CNTs for the enhancement of energy dissipation is more effective than the application of multiwall CNTs or CNT bundles at the same mass fraction of CNT inclusions. The presence of a lossy dielectric (surfactant) coating can significantly increase the absorption cross section of singlewall CNTs.

Original language	English
Article number	114302
Journal	Journal of Applied Physics
Volume	108
Issue number	11
DOIs	https://doi.org/10.1063/1.3516480
State	Published - 1 Dec 2010
Externally published	Yes

Funding

Funders	Funder number
European Commission
Belarusian Republican Foundation for Fundamental Research	FP7-230778, FP7-266529 BY-NanoERA, F10R-002, F10CO-020
Seventh Framework Programme	230778, 266529
International Science and Technology Center	B-1708

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 3 Good Health and Well-being

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10.1063/1.3516480

Cite this

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title = "Radiofrequency field absorption by carbon nanotubes embedded in a conductive host",

abstract = "Understanding the electromagnetic response of carbon nanotubes (CNTs) in the radio frequency range is very important for experimental development of therapeutic and diagnostic CNT applications, including selective thermolysis of cancer cells and thermoacoustic imaging. In this study, we present the theory of electromagnetic wave scattering by several finite length CNT configurations, including singlewall CNT's having a surfactant coating, CNT bundles, and multiwall CNTs. Absorption cross-sections of these structures in a conductive host region are theoretically studied in the radio frequency range. Strong local field enhancement due to edge effects is predicted to be inherent to metallic singlewall CNTs in the near-field zone, providing an additional mechanism of energy dissipation in a conductive host. Due to the screening effect the application of singlewall CNTs for the enhancement of energy dissipation is more effective than the application of multiwall CNTs or CNT bundles at the same mass fraction of CNT inclusions. The presence of a lossy dielectric (surfactant) coating can significantly increase the absorption cross section of singlewall CNTs.",

author = "Shuba, \{Mikhail V.\} and Slepyan, \{Gregory Ya\} and Maksimenko, \{Sergey A.\} and Hanson, \{George W.\}",

note = "Funding Information: This research was partially supported by the Belarus Republican Foundation for Fundamental Research (BRFFR) under Project Nos. F10R-002 and F10CO-020, EU FP7 under Project Nos. FP7-230778 TERACAN and FP7-266529 BY-NanoERA, and ISTC Project No. B-1708.",

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AU - Shuba, Mikhail V.

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AU - Hanson, George W.

N1 - Funding Information: This research was partially supported by the Belarus Republican Foundation for Fundamental Research (BRFFR) under Project Nos. F10R-002 and F10CO-020, EU FP7 under Project Nos. FP7-230778 TERACAN and FP7-266529 BY-NanoERA, and ISTC Project No. B-1708.

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Y1 - 2010/12/1

N2 - Understanding the electromagnetic response of carbon nanotubes (CNTs) in the radio frequency range is very important for experimental development of therapeutic and diagnostic CNT applications, including selective thermolysis of cancer cells and thermoacoustic imaging. In this study, we present the theory of electromagnetic wave scattering by several finite length CNT configurations, including singlewall CNT's having a surfactant coating, CNT bundles, and multiwall CNTs. Absorption cross-sections of these structures in a conductive host region are theoretically studied in the radio frequency range. Strong local field enhancement due to edge effects is predicted to be inherent to metallic singlewall CNTs in the near-field zone, providing an additional mechanism of energy dissipation in a conductive host. Due to the screening effect the application of singlewall CNTs for the enhancement of energy dissipation is more effective than the application of multiwall CNTs or CNT bundles at the same mass fraction of CNT inclusions. The presence of a lossy dielectric (surfactant) coating can significantly increase the absorption cross section of singlewall CNTs.

AB - Understanding the electromagnetic response of carbon nanotubes (CNTs) in the radio frequency range is very important for experimental development of therapeutic and diagnostic CNT applications, including selective thermolysis of cancer cells and thermoacoustic imaging. In this study, we present the theory of electromagnetic wave scattering by several finite length CNT configurations, including singlewall CNT's having a surfactant coating, CNT bundles, and multiwall CNTs. Absorption cross-sections of these structures in a conductive host region are theoretically studied in the radio frequency range. Strong local field enhancement due to edge effects is predicted to be inherent to metallic singlewall CNTs in the near-field zone, providing an additional mechanism of energy dissipation in a conductive host. Due to the screening effect the application of singlewall CNTs for the enhancement of energy dissipation is more effective than the application of multiwall CNTs or CNT bundles at the same mass fraction of CNT inclusions. The presence of a lossy dielectric (surfactant) coating can significantly increase the absorption cross section of singlewall CNTs.

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Radiofrequency field absorption by carbon nanotubes embedded in a conductive host

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