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다차원 탄소재료 연구단
다차원 탄소재료 연구단
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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(s)
Jeong D.W.; Park S.; Choi W.J.; Bae G.; Chung Y.J.; Yang C.-S.; Lee Y.K.; Kim J.-J.; Noejung Park; Lee J.-O.
Publication Date
2015-03
Journal
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, v.9, no.3, pp.180 - 186
Publisher
WILEY-V C H VERLAG GMBH
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://pr.ibs.re.kr/handle/8788114/2081
ISSN
1862-6254
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > Journal Papers (저널논문)
Files in This Item:
25. Jeong_et_al-2015-physica_status_solidi_(RRL)_-_Rapid_Research_Letters.pdfDownload

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