Two-dimensional arrays of self-assembled gold and sulfur-containing fullerene nanoparticles

Sheng Ming Shih, Wei Fang Su, Yuh Jiuan Lin, Cen Shawn Wu, Chii Dong Chen

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

Two-dimensional (2D) arrays of gold nanoparticles with sulfur-containing fullerene nanoparticles were self-assembled through the formation of Au-S covalent bonds. Disulfide functional groups were introduced into the C60 molecule by reacting propyl 2-aminoethyl disulfide with C60. The 2D arrays were formed at the interface of the aqueous phase of gold particles and organic phase of fullerene particles as a blue transparent film. Transmission electronic microscope images showed that the fullerene spacing between adjacent Au (∼10 nm) particles was about 2.1 ± 0.4 nm, which was consistent with the result of 2.18 nm by molecular molding calculations (MM+). The UV-visible spectrum of this film showed a red shift and increased bandwidth due to the small spacing between gold nanoparticles. The arrays were deposited on the top of pairs of gold electrodes to form 2D colloidal single electron devices. The electrode pairs were made by electron beam lithographic techniques, and the separation between tips of the two electrodes in a pair was about 100 nm. Electron transport measurements at low temperatures exhibited Coulomb blockade type current-voltage characteristics due to the charge effects. The assembled arrays have potential applications as nanoelectronics.

Original languageEnglish
Pages (from-to)3332-3335
Number of pages4
JournalLangmuir
Volume18
Issue number8
DOIs
Publication statusPublished - 2002 Apr 16

Fingerprint

Fullerenes
Sulfur
Gold
fullerenes
sulfur
gold
Nanoparticles
nanoparticles
disulfides
Disulfides
Electrodes
electrodes
spacing
Coulomb blockade
Electron devices
Covalent bonds
Nanoelectronics
covalent bonds
Current voltage characteristics
visible spectrum

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

Cite this

Shih, Sheng Ming ; Su, Wei Fang ; Lin, Yuh Jiuan ; Wu, Cen Shawn ; Chen, Chii Dong. / Two-dimensional arrays of self-assembled gold and sulfur-containing fullerene nanoparticles. In: Langmuir. 2002 ; Vol. 18, No. 8. pp. 3332-3335.
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Two-dimensional arrays of self-assembled gold and sulfur-containing fullerene nanoparticles. / Shih, Sheng Ming; Su, Wei Fang; Lin, Yuh Jiuan; Wu, Cen Shawn; Chen, Chii Dong.

In: Langmuir, Vol. 18, No. 8, 16.04.2002, p. 3332-3335.

Research output: Contribution to journalArticle

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