BROWSE

Related Researcher

Author

Park, Su-Moon
Electrochemistry Lab
Research Interests
  • Electrochemistry and spectroscopy of conducting polymers

ITEM VIEW & DOWNLOAD

Spontaneous electron transfer from C-60 to Au ions: oxidation of C-60 and hole doping

Cited 3 times inthomson ciCited 3 times inthomson ci
Title
Spontaneous electron transfer from C-60 to Au ions: oxidation of C-60 and hole doping
Author
Shin, Hyeon SukLim, HyunseobSong, Hyun JaeShin, Hyun-JoonPark, Su-MoonChoi, Hee Cheul
Keywords
Au nanoparticle; Before and after; Characteristic curve; Doped c; Electron transfer; Energy differences; Fermi energy levels; Galvanic displacement; Hole-doping; Standard reduction potentials
Issue Date
201009
Publisher
ROYAL SOC CHEMISTRY
Citation
JOURNAL OF MATERIALS CHEMISTRY, v.20, no.34, pp.7183 - 7188
Abstract
Spontaneous oxidation of C-60 by Au ions was observed. When C-60 was guided to make contacts with Au3+ ions in aqueous HAuCl4 solution, electrons were spontaneously transferred from C-60 to Au3+ ions, resulting in hole (h(+)) doped C-60 cations and Au nanoparticles on a C-60 layer. This spontaneous electron transfer occurs due to the galvanic displacement from C-60 to Au3+ ions owing to the energy difference between Fermi energy level of C-60 (-4.7 eV) and standard reduction potential of Au3+ ion (+1.002 V). The oxidation of C-60 as well as the consequent formation of reduced Au nanoparticles were confirmed by atomic force microscopy, X-ray photoelectron spectroscopy, and electrochemistry. The switch of majority charge carrier type from electron to hole and its stability in air were also confirmed by monitoring I-V-g characteristic curves of a C-60 field effect transistor (FET) device before and after the reaction with Au3+ ions.
URI
Go to Link
DOI
http://dx.doi.org/10.1039/c0jm00783h
ISSN
0959-9428
Appears in Collections:
ECHE_Journal Papers
SNS_Journal Papers

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qr_code

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU