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We demonstrate a graphene/nanotube hybrid phototransistor, in which photogating provided by the nanotube layer leads to a dramatically enhanced photoresponsivity (>100A/W) in the visible range, corresponding to ∼104 enhancement with respect to a graphene-only device.
A photodetector based on SWNT-graphene hybrid films and facile fabrication steps is demonstrated, which exhibits a remarkably high photoresponsivity of ∼ 100 A/W, across visible (400 nm) to the telecommunication wavelengths (1550 nm).
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