Browsing Chemistry (Scholarly Publications) by Author "KUMAR, SHISHIR"

Now showing items 1-5 of 5

    • The Effect of Downstream Plasma Treatments on Graphene Surfaces 

      DUESBERG, GEORG; KUMAR, SHISHIR; MCEVOY, NIALL; LEE, KANGHO; MCEVOY, NIALL (2012)
      This paper reports on the effects of growth, transfer and annealing procedures on graphene grown by chemical vapour deposition. A combination of Raman spectroscopy, electrical measurements, atomic force microscopy, and ...

    • Magnetoresistance of Fe3O4-graphene-Fe3O4 junctions 

      DUESBERG, GEORG; WU, HAN-CHUN; WANG, JING; CROSS, GRAHAM; KUMAR, SHISHIR; SHVETS, IGOR (2011)
      The magnetoresistance (MR) of Fe3O4-graphene-Fe3O4 junctions has been experimentally studied at different temperatures. It is found that a barrier exists at the Fe3O4/graphene interface. The existence of the interfacial ...

    • Reliable processing of graphene using metal etchmasks 

      DUESBERG, GEORG; KUMAR, SHISHIR; KIM, HYE (2011)
      Graphene exhibits exciting properties which make it an appealing candidate for use in electronic devices. Reliable processes for device fabrication are crucial prerequisites for this. We developed a large area of CVD ...

    • Synthesis and Analysis of Thin Conducting Pyrolytic Carbon Films 

      DUESBERG, GEORG; KUMAR, SHISHIR; REZVANI, EHSAN; NOLAN, HUGO; KEELEY, GARETH; BLAU, WERNER; MCEVOY, NIALL (2012)
      We report on an adjustable process for chemical vapour deposition of thin films of pyrolytic carbon on inert substrates using an acetylene feedstock. Through modification of the reaction parameters control over film thickness ...

    • Transparent ultrathin conducting carbon films 

      BOESE, MARKUS; LUTZ, TAREK; KUMAR, SHISHIR; DUESBERG, GEORG (2010)
      Ultrathin conductive carbon layers (UCCLs) were created by spin coating resists and subsequently converting them to conductive films by pyrolysis. Homogeneous layers as thin as 3 nm with nearly atomically smooth surfaces ...