Spontaneous electron transfer from C-60 to Au ions: oxidation of C-60 and hole doping
Cited 3 times inCited 3 times in
- Spontaneous electron transfer from C-60 to Au ions: oxidation of C-60 and hole doping
- Shin, Hyeon Suk; Lim, Hyunseob; Song, Hyun Jae; Shin, Hyun-Joon; Park, Su-Moon; Choi, Hee Cheul
- 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
- ROYAL SOC CHEMISTRY
- JOURNAL OF MATERIALS CHEMISTRY, v.20, no.34, pp.7183 - 7188
- 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.
- ; Go to Link
Appears in Collections:
- ECHE_Journal Papers
can give you direct access to the published full text of this article. (UNISTARs only)
Show full item record
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.