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Park, Noejung
Computational Physics & Electronic Structure Lab
Research Interests
  • Electronic structure calculation, computational physics, computational material science

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Electron-transfer transparency of graphene: Fast reduction of metal ions on graphene-covered donor surfaces

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Title
Electron-transfer transparency of graphene: Fast reduction of metal ions on graphene-covered donor surfaces
Author
Jeong, Du WonPark, SerinChoi, Won JinBae, GiyeolChung, Yun JangYang, Cheol-SooLee, Young KukKim, Ju-JinPark, NoejungLee, Jeong-O
Issue Date
2015-03
Publisher
WILEY-V C H VERLAG GMBH
Citation
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, v.9, no.3, pp.180 - 186
Abstract
The mechanism of charge transfer through nanomaterials such as graphene remains unclear, and the amount of charge that can be transferred from/to graphene without damaging its structural integrity is unknown. In this communication, we show that metallic nanoparticles can be decorated onto graphene surfaces as a result of charge transfer from the supporting substrate to an adjoining solution containing metal ions. Au or Pt nanoparticles were formed with relatively high yield on graphene-coated substrates that can reduce these metal ions, such as Ge, Si, GaAs, Al, and Cu. However, metal ions were not reduced on graphene surfaces coated onto non-reducing substrates such as SiO2 or ZnO. These results confirm that graphene can be doped by exploiting charge transfer from the underlying substrate; thus graphene is not only transparent with respect to visible light, but also with respect to the charge transfer. ⓒ 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
URI
https://scholarworks.unist.ac.kr/handle/201301/11264
URL
http://onlinelibrary.wiley.com/doi/10.1002/pssr.201510014/abstract;jsessionid=919D6C5169CE2A7700424FB84B70E8FE.f04t02
DOI
10.1002/pssr.201510014
ISSN
1862-6254
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