Journal
SCIENCE
Volume 335, Issue 6071, Pages 947-950Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1218461
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Funding
- European Research Council
- European Commision
- Engineering and Physical Research Council (UK)
- Royal Society
- U.S. Office of Naval Research
- U.S. Air Force Office of Scientific Research
- Korber Foundation
- Swiss National Science Foundation
- Engineering and Physical Sciences Research Council [EP/G035954/1, EP/K005014/1] Funding Source: researchfish
- EPSRC [EP/K005014/1, EP/G035954/1] Funding Source: UKRI
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An obstacle to the use of graphene as an alternative to silicon electronics has been the absence of an energy gap between its conduction and valence bands, which makes it difficult to achieve low power dissipation in the OFF state. We report a bipolar field-effect transistor that exploits the low density of states in graphene and its one-atomic-layer thickness. Our prototype devices are graphene heterostructures with atomically thin boron nitride or molybdenum disulfide acting as a vertical transport barrier. They exhibit room-temperature switching ratios of approximate to 50 and approximate to 10,000, respectively. Such devices have potential for high-frequency operation and large-scale integration.
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