Regensburg 2013 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 71: Graphene - Preparation and Characterization 2 (jointly with DS, HL, MA, and O)

TT 71.2: Talk

Friday, March 15, 2013, 10:45–11:00, H17

Fabrication of laterally structured graphene/carbon nanomembrane hybrids — •Andreas Winter¹, Stefan Wundrack², Rainer Stosch², and Andrey Turchanin¹ — ¹Universität Bielefeld, 33615 Bielefeld — ²Physikalisch-Technische Bundesanstalt, 38116 Braunschweig

Laterally structured free-standing micro- and nanostructures of single-layer graphene (SLG) embedded into dielectric sheets with a thickness comparable to graphene are of great interest for applications in electronic or optoelectronic devices. However, their fabrication is not a trivial task at present. Here, we demonstrate how such hybrids can be engineered using electron-irradiation-induced crosslinking of graphene micro-/nanostructures with carbon nanomembranes (CNMs). CNMs are a dielectric 2D carbon material with the thickness of about 1 nm consisting of cross-linked randomly oriented benzene rings. We show scalable production of well-defined laterally patterned CNM-SLG hybrids of various architectures and characterize their structural, chemical and electronic quality by complementary spectroscopic and microscopic techniques including helium ion microscopy and Raman spectroscopy. Application areas of the generated hybrids will be discussed.