Coulomb blockade in a granular material made of gold nanowires

Hoel Guerin, Masanori Yoshihira, Hiroaki Kura, Tomoyuki Ogawa, Tetsuya Sato, Hideyuki Maki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Uniform, 2 nm diameter gold nanowires were synthesized through the reduction of gold(III) chloride in an oleylamine matrix. They were top-contacted on a Si/SiO2 substrate with metallic electrodes to manufacture back-gated transistors. Due to thermal breakage, the gold nanowires were fragmented into a granular material and the non-linear current-bias voltage characteristics measured on the devices from 7 K up to 300 K were described by the Coulomb blockade theory in a nearly one-dimensional quantum dot array. The electronic transport was governed by sequential tunneling at an applied bias above the global Coulomb blockade threshold, whereas in the Coulomb blockade regime, inelastic cotunneling was dominant up to 70 K, at which point it crossed over to activated behavior. The current dependence on the gate voltage that showed irregular oscillations was explained by the superimposition of Coulomb oscillation patterns generated by each different dot in the one-dimensional array. The competitive effects of excitation energy and stochastic Coulomb blockade balanced the number of current peaks observed.

Original languageEnglish
Title of host publicationProceedings of the IEEE Conference on Nanotechnology
DOIs
Publication statusPublished - 2012
Event2012 12th IEEE International Conference on Nanotechnology, NANO 2012 - Birmingham, United Kingdom
Duration: 2012 Aug 202012 Aug 23

Other

Other2012 12th IEEE International Conference on Nanotechnology, NANO 2012
CountryUnited Kingdom
CityBirmingham
Period12/8/2012/8/23

Fingerprint

Coulomb blockade
Granular materials
granular materials
Gold
Nanowires
nanowires
gold
oscillations
electric potential
Excitation energy
transistors
Bias voltage
chlorides
quantum dots
Semiconductor quantum dots
Chlorides
Transistors
thresholds
electrodes
matrices

ASJC Scopus subject areas

  • Bioengineering
  • Electrical and Electronic Engineering
  • Materials Chemistry
  • Condensed Matter Physics

Cite this

Guerin, H., Yoshihira, M., Kura, H., Ogawa, T., Sato, T., & Maki, H. (2012). Coulomb blockade in a granular material made of gold nanowires. In Proceedings of the IEEE Conference on Nanotechnology [6322047] https://doi.org/10.1109/NANO.2012.6322047

Coulomb blockade in a granular material made of gold nanowires. / Guerin, Hoel; Yoshihira, Masanori; Kura, Hiroaki; Ogawa, Tomoyuki; Sato, Tetsuya; Maki, Hideyuki.

Proceedings of the IEEE Conference on Nanotechnology. 2012. 6322047.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Guerin, H, Yoshihira, M, Kura, H, Ogawa, T, Sato, T & Maki, H 2012, Coulomb blockade in a granular material made of gold nanowires. in Proceedings of the IEEE Conference on Nanotechnology., 6322047, 2012 12th IEEE International Conference on Nanotechnology, NANO 2012, Birmingham, United Kingdom, 12/8/20. https://doi.org/10.1109/NANO.2012.6322047
Guerin H, Yoshihira M, Kura H, Ogawa T, Sato T, Maki H. Coulomb blockade in a granular material made of gold nanowires. In Proceedings of the IEEE Conference on Nanotechnology. 2012. 6322047 https://doi.org/10.1109/NANO.2012.6322047
Guerin, Hoel ; Yoshihira, Masanori ; Kura, Hiroaki ; Ogawa, Tomoyuki ; Sato, Tetsuya ; Maki, Hideyuki. / Coulomb blockade in a granular material made of gold nanowires. Proceedings of the IEEE Conference on Nanotechnology. 2012.
@inproceedings{6ea0e6b87cc34de4aba47b903ea43b8d,
title = "Coulomb blockade in a granular material made of gold nanowires",
abstract = "Uniform, 2 nm diameter gold nanowires were synthesized through the reduction of gold(III) chloride in an oleylamine matrix. They were top-contacted on a Si/SiO2 substrate with metallic electrodes to manufacture back-gated transistors. Due to thermal breakage, the gold nanowires were fragmented into a granular material and the non-linear current-bias voltage characteristics measured on the devices from 7 K up to 300 K were described by the Coulomb blockade theory in a nearly one-dimensional quantum dot array. The electronic transport was governed by sequential tunneling at an applied bias above the global Coulomb blockade threshold, whereas in the Coulomb blockade regime, inelastic cotunneling was dominant up to 70 K, at which point it crossed over to activated behavior. The current dependence on the gate voltage that showed irregular oscillations was explained by the superimposition of Coulomb oscillation patterns generated by each different dot in the one-dimensional array. The competitive effects of excitation energy and stochastic Coulomb blockade balanced the number of current peaks observed.",
author = "Hoel Guerin and Masanori Yoshihira and Hiroaki Kura and Tomoyuki Ogawa and Tetsuya Sato and Hideyuki Maki",
year = "2012",
doi = "10.1109/NANO.2012.6322047",
language = "English",
isbn = "9781467321983",
booktitle = "Proceedings of the IEEE Conference on Nanotechnology",

}

TY - GEN

T1 - Coulomb blockade in a granular material made of gold nanowires

AU - Guerin, Hoel

AU - Yoshihira, Masanori

AU - Kura, Hiroaki

AU - Ogawa, Tomoyuki

AU - Sato, Tetsuya

AU - Maki, Hideyuki

PY - 2012

Y1 - 2012

N2 - Uniform, 2 nm diameter gold nanowires were synthesized through the reduction of gold(III) chloride in an oleylamine matrix. They were top-contacted on a Si/SiO2 substrate with metallic electrodes to manufacture back-gated transistors. Due to thermal breakage, the gold nanowires were fragmented into a granular material and the non-linear current-bias voltage characteristics measured on the devices from 7 K up to 300 K were described by the Coulomb blockade theory in a nearly one-dimensional quantum dot array. The electronic transport was governed by sequential tunneling at an applied bias above the global Coulomb blockade threshold, whereas in the Coulomb blockade regime, inelastic cotunneling was dominant up to 70 K, at which point it crossed over to activated behavior. The current dependence on the gate voltage that showed irregular oscillations was explained by the superimposition of Coulomb oscillation patterns generated by each different dot in the one-dimensional array. The competitive effects of excitation energy and stochastic Coulomb blockade balanced the number of current peaks observed.

AB - Uniform, 2 nm diameter gold nanowires were synthesized through the reduction of gold(III) chloride in an oleylamine matrix. They were top-contacted on a Si/SiO2 substrate with metallic electrodes to manufacture back-gated transistors. Due to thermal breakage, the gold nanowires were fragmented into a granular material and the non-linear current-bias voltage characteristics measured on the devices from 7 K up to 300 K were described by the Coulomb blockade theory in a nearly one-dimensional quantum dot array. The electronic transport was governed by sequential tunneling at an applied bias above the global Coulomb blockade threshold, whereas in the Coulomb blockade regime, inelastic cotunneling was dominant up to 70 K, at which point it crossed over to activated behavior. The current dependence on the gate voltage that showed irregular oscillations was explained by the superimposition of Coulomb oscillation patterns generated by each different dot in the one-dimensional array. The competitive effects of excitation energy and stochastic Coulomb blockade balanced the number of current peaks observed.

UR - http://www.scopus.com/inward/record.url?scp=84869162762&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84869162762&partnerID=8YFLogxK

U2 - 10.1109/NANO.2012.6322047

DO - 10.1109/NANO.2012.6322047

M3 - Conference contribution

AN - SCOPUS:84869162762

SN - 9781467321983

BT - Proceedings of the IEEE Conference on Nanotechnology

ER -