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TT: Fachverband Tiefe Temperaturen
TT 37: Graphene Posters (joint session DS, DY, HL, MA, O, TT, organized by O)
TT 37.8: Poster
Dienstag, 21. März 2017, 18:30–20:30, P2-EG
Graphene formation on thin epitaxial grown Cu(111)-foils by chemical vapor deposition of acetone — •Jens Neurohr1, Samuel Grandthyll1, Michael Weinl2, Matthias Schreck2, Karin Jacobs1, and Frank Müller1 — 1Experimental Physics, Saarland University, 66041 Saarbruecken, Germany — 2Experimental Physics 4, University of Augsburg, 86135 Augsburg, Germany
In comparison to the standard growth of graphene on copper via the CVD-process, an oxygen containing precursor (acetone) has been used for graphene formation on thin single crystalline Cu(111-foils. In contrast to some literature reports, graphene formation can be obtained at quite low temperatures of about 700∘C [1,2]. Graphene growth on the Cu(111)-foils was investigated by X-ray photoelectron spectroscopy (XPS), X-ray photoelectron diffraction (XPD), low energy electron diffraction (LEED), Fermi surface mapping(FSM), and scanning tunnel microscopy (STM) revealing nearly one monolayer coverage of mostly ± 1.65∘ rotated domains.
References:
[1] L. Gao, J. R. Guestand N. P. Guisinger Nano Letters 10.1021/nl1016706
[2] H. K. Yu, K. Balasubramanian, K. Kim, J.-L. Lee, M. Maiti, C. Ropers, J. Krieg, K. Kern and A. M. Wodtke ACS Nano 10.1021/nn503476