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Preparation of Polyacrylonitrile/Graphene Oxide Nanocomposite-Derived Carbon Microstructures by Ion Beam Patterning and Post-Pyrolysis

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In this study, the preparation of carbon microstructures (CMs) from polyacrylonitrile (PAN)/graphene oxide (GO) nanocomposites is described based on the ion beam patterning and pyrolysis. Thin films of PAN/GO nanocom-posites formed by spin-coating on a SiO2-deposited Si wafer were selectively irradiated through a pattern mask with 150 keV H+ ions at various fluences ranging from 1 × 1015 to 1 × 1016 ions/cm2, and subsequently developed with N,N´-dimethylformamide (DMF) to form PAN/GO patterns. The resulting PAN/GO patterns underwent a heat treatment process for the creation of CMs. Well-defined negative-type PAN/GO patterns were created at a fluence of 1 × 1015 ions/cm2, and they were pyrolyzed at 1000 °C without a significant shrinkage in the horizontal direction. The PAN/GO patterns were transformed into the graphitic CMs during the pyrolysis. Moreover, the formed CMs exhibited the GO content-dependent electrical conductivity in comparison to that of the pure PAN-derived CMs.
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Keywords: CARBON MICROSTRUCTURE; ELECTRICAL PROPERTIES; GRAPHENE OXIDE; ION BEAM PATTERNING; NANOCOMPOSITEPRECURSOR; POLYACRYLONITRILE

Document Type: Research Article

Publication date: August 1, 2016

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  • Science of Advanced Materials (SAM) is an interdisciplinary peer-reviewed journal consolidating research activities in all aspects of advanced materials in the fields of science, engineering and medicine into a single and unique reference source. SAM provides the means for materials scientists, chemists, physicists, biologists, engineers, ceramicists, metallurgists, theoreticians and technocrats to publish original research articles as reviews with author's photo and short biography, full research articles and communications of important new scientific and technological findings, encompassing the fundamental and applied research in all latest aspects of advanced materials.
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