Journal
SCIENCE
Volume 315, Issue 5816, Pages 1252-1255Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1138020
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Funding
- EPSRC [EP/D062918/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/C511743/1, EP/C509358/1, EP/D062918/1] Funding Source: researchfish
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The focusing of electric current by a single p-n junction in graphene is theoretically predicted. Precise focusing may be achieved by fine-tuning the densities of carriers on the n- and p-sides of the junction to equal values. This finding may be useful for the engineering of electronic lenses and focused beam splitters using gate-controlled n-p-n junctions in graphene-based transistors.
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