Dual-gated bilayer graphene hot-electron bolometer
作者： Jun Yan , M-H. Kim , J. A. Elle , A. B. Sushkov , G. S. Jenkins
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摘要: Graphene is an attractive material for use in optical detectors because it absorbs light from mid-infrared to ultraviolet wavelengths with nearly equal strength. Graphene is particularly well suited for bolometers—devices that detect temperature-induced changes in electrical conductivity caused by the absorption of light—because its small electron heat capacity and weak electron–phonon coupling lead to large light-induced changes in electron temperature. Here, we demonstrate a hot-electron bolometer made of bilayer graphene that …
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