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)

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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
JournalJournal of the American Chemical Society
Volume126
Issue number22
DOIs
Publication statusPublished - 2004
MoE publication typeA1 Journal article-refereed

Keywords

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

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    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