AI Article Synopsis
- The study investigates how edge effects impact transport properties in graphene nanoribbons and sheets at room temperature.
- Results indicate that single-layer nanoribbons experience a strong localization effect due to their edges, affecting their resistance.
- The research suggests that widening the ribbons, lowering carrier densities, or adding layers can mitigate these edge effects, highlighting a transition in transport properties from nanoribbons to sheets.
Article Abstract
We report an experimental investigation of the edge effect on the room-temperature transport in graphene nanoribbon and graphene sheet (both single-layer and bilayer). By measuring the resistance scaling behaviors at both low- and high-carrier densities, we show that the transport of single-layer nanoribbons lies in a strong localization regime, which can be attributed to an edge effect. We find that this edge effect can be weakened by enlarging the width, decreasing the carrier densities, or adding an extra layer. From graphene nanoribbon to graphene sheet, the data show a dimensional crossover of the transport regimes possibly due to the drastic change of the edge effect.
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| http://dx.doi.org/10.1021/nl103966t | DOI Listing |
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