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Träfflista för sökning "WFRF:(Lindvall Niclas 1985) srt2:(2013)"

Sökning: WFRF:(Lindvall Niclas 1985) > (2013)

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1.
  • Lockhart de la Rosa, César Javier, 1987, et al. (författare)
  • Frame assisted H2O electrolysis induced H2 bubbling transfer of large area graphene grown by chemical vapor deposition on Cu
  • 2013
  • Ingår i: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 102:2
  • Tidskriftsartikel (refereegranskat)abstract
    • An improved technique for transferring large area graphene grown by chemical vapor deposition on copper is presented. It is based on mechanical separation of the graphene/copper by H-2 bubbles during H2O electrolysis, which only takes a few tens of seconds while leaving the copper cathode intact. A semi-rigid plastic frame in combination with thin polymer layer span on graphene gives a convenient way of handling-and avoiding wrinkles and holes in graphene. Optical and electrical characterizations prove the graphene quality is better than that obtained by traditional wet etching transfer. This technique appears to be highly reproducible and cost efficient.
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2.
  • Nam, Youngwoo, 1983, et al. (författare)
  • Quantum Hall effect in graphene decorated with disordered multilayer patches
  • 2013
  • Ingår i: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 103:233, s. 233110-
  • Tidskriftsartikel (refereegranskat)abstract
    • Quantum Hall effect (QHE) is observed in graphene grown by chemical vapour deposition using platinum catalyst. The QHE is even seen in samples which are irregularly decorated with disordered multilayer graphene patches and have very low mobility (
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3.
  • Sellappan, Raja, 1981, et al. (författare)
  • Influence of graphene synthesizing techniques on the photocatalytic performance of Graphene/TiO2 nanocomposites
  • 2013
  • Ingår i: Physical Chemistry Chemical Physics. - 1463-9084 .- 1463-9076. ; 15:37, s. 15528-15537
  • Tidskriftsartikel (refereegranskat)abstract
    • Model photocatalysts composed of TiO2/graphene nanocomposites are prepared to address the role of graphene quality on their photocatalytic performance. Graphene is synthesized by catalyst-assisted chemical vapor deposition (CVD), catalyst-free CVD and solution processing methods. TiO2 is prepared by reactive magnetron sputtering and subsequent annealing. Fabricated model photocatalysts are with different morphology and physical properties, as revealed by spectrophotometry, atomic force microscopy, x-ray photoelectron spectroscopy, Raman spectroscopy, photoluminescence, and four-probe electrical measurements. All graphene–containing composites are with significantly higher photocatalytic activity compared to bare TiO2 films in the gas phase methanol photooxidation tests. The activity is proportional to the electrical conductivity and surface roughness of the respective carbon structure, which in turn depends on the preparation methods. The mechanisms of enhancement are further assessed by comparison with the performance of reference TiO2/graphitic-carbon and TiO2/Au thin films.
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  • Resultat 1-3 av 3

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