Charge transport mechanisms in macro-scale CNT films

Tutkimustuotos: Lehtiartikkeli

Standard

Charge transport mechanisms in macro-scale CNT films. / Zhukova, E. S.; Gorshunov, B. P.; Tsapenko, A. P.; Grebenko, A. K.; Bubis, A. V.; Zhukov, S. S.; Simchuk, E. A.; Tsebro, V. I.; Tonkikh, A. A.; Rybkovskiy, D. V.; Kauppinen, E. I.; Nasibulin, A. G.; Obraztsova, E. D.

julkaisussa: Journal of Physics: Conference Series, Vuosikerta 1092, 012178, 01.01.2018, s. 1-5.

Tutkimustuotos: Lehtiartikkeli

Harvard

Zhukova, ES, Gorshunov, BP, Tsapenko, AP, Grebenko, AK, Bubis, AV, Zhukov, SS, Simchuk, EA, Tsebro, VI, Tonkikh, AA, Rybkovskiy, DV, Kauppinen, EI, Nasibulin, AG & Obraztsova, ED 2018, 'Charge transport mechanisms in macro-scale CNT films', Journal of Physics: Conference Series, Vuosikerta. 1092, 012178, Sivut 1-5. https://doi.org/10.1088/1742-6596/1092/1/012178

APA

Zhukova, E. S., Gorshunov, B. P., Tsapenko, A. P., Grebenko, A. K., Bubis, A. V., Zhukov, S. S., ... Obraztsova, E. D. (2018). Charge transport mechanisms in macro-scale CNT films. Journal of Physics: Conference Series, 1092, 1-5. [012178]. https://doi.org/10.1088/1742-6596/1092/1/012178

Vancouver

Zhukova ES, Gorshunov BP, Tsapenko AP, Grebenko AK, Bubis AV, Zhukov SS et al. Charge transport mechanisms in macro-scale CNT films. Journal of Physics: Conference Series. 2018 tammi 1;1092:1-5. 012178. https://doi.org/10.1088/1742-6596/1092/1/012178

Author

Zhukova, E. S. ; Gorshunov, B. P. ; Tsapenko, A. P. ; Grebenko, A. K. ; Bubis, A. V. ; Zhukov, S. S. ; Simchuk, E. A. ; Tsebro, V. I. ; Tonkikh, A. A. ; Rybkovskiy, D. V. ; Kauppinen, E. I. ; Nasibulin, A. G. ; Obraztsova, E. D. / Charge transport mechanisms in macro-scale CNT films. Julkaisussa: Journal of Physics: Conference Series. 2018 ; Vuosikerta 1092. Sivut 1-5.

Bibtex - Lataa

@article{b6e25d6ac1f445e28cc1e8ad47b8ba9d,
title = "Charge transport mechanisms in macro-scale CNT films",
abstract = "Carbon nanotubes (CNT) attract considerable attention due to their unique physical properties and potential application in optoelectronics. Despite of intensive studies there is still a lack of agreement in experimental data on electrical properties of the material. Here we report on extremely broad-band conductivity and dielectric permittivity spectra of macro-scale thin films composed of large number of randomly distributed pristine and p-doped CNTs of different length, measured in the frequency range 5-24 000 cm-1 and at temperatures from 5 to 300 K. We show that terahertz-infrared spectra of the films are determined by response of delocalized charge carriers. Controversially to the existing experimental results we did not clearly observe the so-called terahertz conductivity peak. Yet, a weak bump-like feature in conductivity spectra around 30 cm-1 showed no signs of tube length dependence. We associate its origin with plasmonic excitation due to reflections of charge carrier plasma at the CNT intersections. Applying the Drude-model to describe the low frequency conductivity and dielectric permittivity spectra of CNT films we obtained effective values of carries parameters. Our results can shed light on electromagnetic waves absorption mechanisms and will be useful while designing new CNT-based devices.",
author = "Zhukova, {E. S.} and Gorshunov, {B. P.} and Tsapenko, {A. P.} and Grebenko, {A. K.} and Bubis, {A. V.} and Zhukov, {S. S.} and Simchuk, {E. A.} and Tsebro, {V. I.} and Tonkikh, {A. A.} and Rybkovskiy, {D. V.} and Kauppinen, {E. I.} and Nasibulin, {A. G.} and Obraztsova, {E. D.}",
year = "2018",
month = "1",
day = "1",
doi = "10.1088/1742-6596/1092/1/012178",
language = "English",
volume = "1092",
pages = "1--5",
journal = "Journal of Physics: Conference Series",
issn = "1742-6588",
publisher = "IOP Publishing Ltd.",

}

RIS - Lataa

TY - JOUR

T1 - Charge transport mechanisms in macro-scale CNT films

AU - Zhukova, E. S.

AU - Gorshunov, B. P.

AU - Tsapenko, A. P.

AU - Grebenko, A. K.

AU - Bubis, A. V.

AU - Zhukov, S. S.

AU - Simchuk, E. A.

AU - Tsebro, V. I.

AU - Tonkikh, A. A.

AU - Rybkovskiy, D. V.

AU - Kauppinen, E. I.

AU - Nasibulin, A. G.

AU - Obraztsova, E. D.

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Carbon nanotubes (CNT) attract considerable attention due to their unique physical properties and potential application in optoelectronics. Despite of intensive studies there is still a lack of agreement in experimental data on electrical properties of the material. Here we report on extremely broad-band conductivity and dielectric permittivity spectra of macro-scale thin films composed of large number of randomly distributed pristine and p-doped CNTs of different length, measured in the frequency range 5-24 000 cm-1 and at temperatures from 5 to 300 K. We show that terahertz-infrared spectra of the films are determined by response of delocalized charge carriers. Controversially to the existing experimental results we did not clearly observe the so-called terahertz conductivity peak. Yet, a weak bump-like feature in conductivity spectra around 30 cm-1 showed no signs of tube length dependence. We associate its origin with plasmonic excitation due to reflections of charge carrier plasma at the CNT intersections. Applying the Drude-model to describe the low frequency conductivity and dielectric permittivity spectra of CNT films we obtained effective values of carries parameters. Our results can shed light on electromagnetic waves absorption mechanisms and will be useful while designing new CNT-based devices.

AB - Carbon nanotubes (CNT) attract considerable attention due to their unique physical properties and potential application in optoelectronics. Despite of intensive studies there is still a lack of agreement in experimental data on electrical properties of the material. Here we report on extremely broad-band conductivity and dielectric permittivity spectra of macro-scale thin films composed of large number of randomly distributed pristine and p-doped CNTs of different length, measured in the frequency range 5-24 000 cm-1 and at temperatures from 5 to 300 K. We show that terahertz-infrared spectra of the films are determined by response of delocalized charge carriers. Controversially to the existing experimental results we did not clearly observe the so-called terahertz conductivity peak. Yet, a weak bump-like feature in conductivity spectra around 30 cm-1 showed no signs of tube length dependence. We associate its origin with plasmonic excitation due to reflections of charge carrier plasma at the CNT intersections. Applying the Drude-model to describe the low frequency conductivity and dielectric permittivity spectra of CNT films we obtained effective values of carries parameters. Our results can shed light on electromagnetic waves absorption mechanisms and will be useful while designing new CNT-based devices.

UR - http://www.scopus.com/inward/record.url?scp=85056212424&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/1092/1/012178

DO - 10.1088/1742-6596/1092/1/012178

M3 - Conference article

VL - 1092

SP - 1

EP - 5

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

M1 - 012178

ER -

ID: 29811318