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Electronic Properties of Microscale Reduced Graphene Oxide Patterned by Micromolding

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Highly uniform reduced graphene oxide (rGO) array patterns with both stripe and square shapes have been fabricated on various substrates using PDMS based soft lithography. Morphology, structure and electrical properties of the GO patterns before and after annealing at 800 °C in H2 atmosphere were investigated. The conductivity and carriers mobilities of the rGO patterns were improved by four orders after H2-reduction. Temperature-dependent electrical measurements showed that charge transport occurs via a variable range hopping mechanism.
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Keywords: REDUCED GRAPHENE OXIDE PATTERN; SOFT LITHOGRAPHY; VARIABLE RANGE HOPPING

Document Type: Short Communication

Publication date: September 1, 2012

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  • Nanoscience and Nanotechnology Letters (NNL) is a multidisciplinary peer-reviewed journal consolidating nanoscale research activities in all disciplines of science, engineering and medicine into a single and unique reference source. NNL provides the means for scientists, engineers, medical experts and technocrats to publish original short research articles as communications/letters of important new scientific and technological findings, encompassing the fundamental and applied research in all disciplines of the physical sciences, engineering and medicine.
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