Electron transport in two-dimensional arrays of gold nanocrystals investigated by scanning electrochemical microscopy

Peter Liljeroth, Daniël Vanmaekelbergh, Virginia Ruiz, Kyösti Kontturi, Hua Jiang, Esko I. Kauppinen, Bernadette M. Quinn (Corresponding Author)

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

This article reports the use of the scanning electrochemical microscope (SECM) to investigate the electronic properties of Langmuir monolayers of alkane thiol protected gold nanocrystals (NCs). A substantial increase in monolayer conductivity upon mechanical compression of the Au NC monolayer is reported for the first time. This may be the room temperature signature of the insulator to metal transition previously reported for comparable silver NC monolayers. Factors influencing the conductivity of the monolayer NC array are discussed.
Original languageEnglish
Pages (from-to)7126 - 7132
Number of pages7
JournalJournal of the American Chemical Society
Volume126
Issue number22
DOIs
Publication statusPublished - 2004
MoE publication typeA1 Journal article-refereed

Fingerprint

Electrochemical Scanning Microscopy
Electron Transport
Gold
Nanoparticles
Nanocrystals
Monolayers
Microscopic examination
Scanning
Alkanes
Silver
Sulfhydryl Compounds
Electronic properties
Metals
Paraffins
Transition metals
Compaction
Microscopes
Temperature

Keywords

  • SECM
  • gold nanocrystals
  • gold nanoparticles
  • gold
  • nanoparticles
  • monolayers

Cite this

Liljeroth, P., Vanmaekelbergh, D., Ruiz, V., Kontturi, K., Jiang, H., Kauppinen, E. I., & Quinn, B. M. (2004). Electron transport in two-dimensional arrays of gold nanocrystals investigated by scanning electrochemical microscopy. Journal of the American Chemical Society, 126(22), 7126 - 7132. https://doi.org/10.1021/ja0493188
Liljeroth, Peter ; Vanmaekelbergh, Daniël ; Ruiz, Virginia ; Kontturi, Kyösti ; Jiang, Hua ; Kauppinen, Esko I. ; Quinn, Bernadette M. / Electron transport in two-dimensional arrays of gold nanocrystals investigated by scanning electrochemical microscopy. In: Journal of the American Chemical Society. 2004 ; Vol. 126, No. 22. pp. 7126 - 7132.
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Liljeroth, P, Vanmaekelbergh, D, Ruiz, V, Kontturi, K, Jiang, H, Kauppinen, EI & Quinn, BM 2004, 'Electron transport in two-dimensional arrays of gold nanocrystals investigated by scanning electrochemical microscopy', Journal of the American Chemical Society, vol. 126, no. 22, pp. 7126 - 7132. https://doi.org/10.1021/ja0493188

Electron transport in two-dimensional arrays of gold nanocrystals investigated by scanning electrochemical microscopy. / Liljeroth, Peter; Vanmaekelbergh, Daniël; Ruiz, Virginia; Kontturi, Kyösti; Jiang, Hua; Kauppinen, Esko I.; Quinn, Bernadette M. (Corresponding Author).

In: Journal of the American Chemical Society, Vol. 126, No. 22, 2004, p. 7126 - 7132.

Research output: Contribution to journalArticleScientificpeer-review

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T1 - Electron transport in two-dimensional arrays of gold nanocrystals investigated by scanning electrochemical microscopy

AU - Liljeroth, Peter

AU - Vanmaekelbergh, Daniël

AU - Ruiz, Virginia

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AU - Jiang, Hua

AU - Kauppinen, Esko I.

AU - Quinn, Bernadette M.

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AB - This article reports the use of the scanning electrochemical microscope (SECM) to investigate the electronic properties of Langmuir monolayers of alkane thiol protected gold nanocrystals (NCs). A substantial increase in monolayer conductivity upon mechanical compression of the Au NC monolayer is reported for the first time. This may be the room temperature signature of the insulator to metal transition previously reported for comparable silver NC monolayers. Factors influencing the conductivity of the monolayer NC array are discussed.

KW - SECM

KW - gold nanocrystals

KW - gold nanoparticles

KW - gold

KW - nanoparticles

KW - monolayers

U2 - 10.1021/ja0493188

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M3 - Article

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EP - 7132

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

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