Giant Negative Terahertz Photoconductivity in Controllably Doped Carbon Nanotube Networks

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Standard

Giant Negative Terahertz Photoconductivity in Controllably Doped Carbon Nanotube Networks. / Burdanova, Maria G.; Tsapenko, Alexey P.; Satco, Daria A.; Kashtiban, Reza; Mosley, Connor D.W.; Monti, Maurizio; Staniforth, Michael; Sloan, Jeremy; Gladush, Yuriy G.; Nasibulin, Albert G.; Lloyd-Hughes, James.

julkaisussa: ACS Photonics, Vuosikerta 6, Nro 4, 17.04.2019, s. 1058-1066.

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Harvard

Burdanova, MG, Tsapenko, AP, Satco, DA, Kashtiban, R, Mosley, CDW, Monti, M, Staniforth, M, Sloan, J, Gladush, YG, Nasibulin, AG & Lloyd-Hughes, J 2019, 'Giant Negative Terahertz Photoconductivity in Controllably Doped Carbon Nanotube Networks' ACS Photonics, Vuosikerta. 6, Nro 4, Sivut 1058-1066. https://doi.org/10.1021/acsphotonics.9b00138

APA

Burdanova, M. G., Tsapenko, A. P., Satco, D. A., Kashtiban, R., Mosley, C. D. W., Monti, M., ... Lloyd-Hughes, J. (2019). Giant Negative Terahertz Photoconductivity in Controllably Doped Carbon Nanotube Networks. ACS Photonics, 6(4), 1058-1066. https://doi.org/10.1021/acsphotonics.9b00138

Vancouver

Burdanova MG, Tsapenko AP, Satco DA, Kashtiban R, Mosley CDW, Monti M et al. Giant Negative Terahertz Photoconductivity in Controllably Doped Carbon Nanotube Networks. ACS Photonics. 2019 huhti 17;6(4):1058-1066. https://doi.org/10.1021/acsphotonics.9b00138

Author

Burdanova, Maria G. ; Tsapenko, Alexey P. ; Satco, Daria A. ; Kashtiban, Reza ; Mosley, Connor D.W. ; Monti, Maurizio ; Staniforth, Michael ; Sloan, Jeremy ; Gladush, Yuriy G. ; Nasibulin, Albert G. ; Lloyd-Hughes, James. / Giant Negative Terahertz Photoconductivity in Controllably Doped Carbon Nanotube Networks. Julkaisussa: ACS Photonics. 2019 ; Vuosikerta 6, Nro 4. Sivut 1058-1066.

Bibtex - Lataa

@article{4c8a5394c0d84a85ad0de1a32b2d254c,
title = "Giant Negative Terahertz Photoconductivity in Controllably Doped Carbon Nanotube Networks",
abstract = "A strong negative photoconductivity was identified in thin film networks of single-walled carbon nanotubes using optical pump, THz probe spectroscopy. The films were controllably doped, using either adsorption doping with different p-type dopant concentrations or ambipolar doping using an ionic gate. While doping enhanced the THz conductivity and increased the momentum scattering rate, interband photoexcitation lowered the spectral weight and reduced the momentum scattering rate. This negative THz photoconductivity was observed for all doping levels, regardless of the chemical potential, and decayed within a few picoseconds. The strong many-body interactions inherent to these 1D conductors led to trion formation under photoexcitation, lowering the overall conductivity of the carbon nanotube network. The large amplitude of negative THz photoconductivity and the tunability of its recovery time with doping offer promise for spectrally wide-band ultrafast devices, including THz detectors, polarizers, and modulators.",
keywords = "carbon nanotubes, negative photoconductivity, terahertz spectroscopy",
author = "Burdanova, {Maria G.} and Tsapenko, {Alexey P.} and Satco, {Daria A.} and Reza Kashtiban and Mosley, {Connor D.W.} and Maurizio Monti and Michael Staniforth and Jeremy Sloan and Gladush, {Yuriy G.} and Nasibulin, {Albert G.} and James Lloyd-Hughes",
year = "2019",
month = "4",
day = "17",
doi = "10.1021/acsphotonics.9b00138",
language = "English",
volume = "6",
pages = "1058--1066",
journal = "ACS Photonics",
issn = "2330-4022",
number = "4",

}

RIS - Lataa

TY - JOUR

T1 - Giant Negative Terahertz Photoconductivity in Controllably Doped Carbon Nanotube Networks

AU - Burdanova, Maria G.

AU - Tsapenko, Alexey P.

AU - Satco, Daria A.

AU - Kashtiban, Reza

AU - Mosley, Connor D.W.

AU - Monti, Maurizio

AU - Staniforth, Michael

AU - Sloan, Jeremy

AU - Gladush, Yuriy G.

AU - Nasibulin, Albert G.

AU - Lloyd-Hughes, James

PY - 2019/4/17

Y1 - 2019/4/17

N2 - A strong negative photoconductivity was identified in thin film networks of single-walled carbon nanotubes using optical pump, THz probe spectroscopy. The films were controllably doped, using either adsorption doping with different p-type dopant concentrations or ambipolar doping using an ionic gate. While doping enhanced the THz conductivity and increased the momentum scattering rate, interband photoexcitation lowered the spectral weight and reduced the momentum scattering rate. This negative THz photoconductivity was observed for all doping levels, regardless of the chemical potential, and decayed within a few picoseconds. The strong many-body interactions inherent to these 1D conductors led to trion formation under photoexcitation, lowering the overall conductivity of the carbon nanotube network. The large amplitude of negative THz photoconductivity and the tunability of its recovery time with doping offer promise for spectrally wide-band ultrafast devices, including THz detectors, polarizers, and modulators.

AB - A strong negative photoconductivity was identified in thin film networks of single-walled carbon nanotubes using optical pump, THz probe spectroscopy. The films were controllably doped, using either adsorption doping with different p-type dopant concentrations or ambipolar doping using an ionic gate. While doping enhanced the THz conductivity and increased the momentum scattering rate, interband photoexcitation lowered the spectral weight and reduced the momentum scattering rate. This negative THz photoconductivity was observed for all doping levels, regardless of the chemical potential, and decayed within a few picoseconds. The strong many-body interactions inherent to these 1D conductors led to trion formation under photoexcitation, lowering the overall conductivity of the carbon nanotube network. The large amplitude of negative THz photoconductivity and the tunability of its recovery time with doping offer promise for spectrally wide-band ultrafast devices, including THz detectors, polarizers, and modulators.

KW - carbon nanotubes

KW - negative photoconductivity

KW - terahertz spectroscopy

UR - http://www.scopus.com/inward/record.url?scp=85064670266&partnerID=8YFLogxK

U2 - 10.1021/acsphotonics.9b00138

DO - 10.1021/acsphotonics.9b00138

M3 - Article

VL - 6

SP - 1058

EP - 1066

JO - ACS Photonics

JF - ACS Photonics

SN - 2330-4022

IS - 4

ER -

ID: 33653786