Stöberl, Ulrich and Wurstbauer, Ursula and Wegscheider, Werner and Weiss, Dieter and Eroms, Jonathan (2008) Morphology and flexibility of graphene and few-layer graphene on various substrates. Applied Physics Letters 93, 051906.
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We report on detailed microscopy studies of graphene and few-layer graphene produced by mechanical exfoliation on various semiconducting substrates. We demonstrate the possibility to prepare and analyze graphene on (001)-GaAs, manganese p-doped (001)-GaAs, and InGaAs substrates. The morphology of graphene on these substrates was investigated by scanning electron and atomic force microscopies and compared to layers on SiO2. It was found that graphene sheets strongly follow the texture of the sustaining substrates independent on doping, polarity, or roughness. Furthermore resist residues exist on top of graphene after a lithographic step. The obtained results provide the opportunity to research the graphene-substrate interactions.
|Institutions:|| Physics > Institute of Experimental and Applied Physics > Retired Professors > Group Werner Wegscheider|
Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss
|Projects:||Graduiertenkolleg Nichtlinearität und Nichtgleichgewicht|
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||25 May 2009 13:19|
|Last Modified:||05 Aug 2009 13:57|