Daily archives for December 9th, 2017

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Hybrid graphene–quantum dot phototransistors with ultrahig...

Hybrid graphene–quantum dot phototransistors with ultrahigh gain

Graphene is an attractive material for optoelectronics1 and photodetection applications2–6 because it offers a broad spectral bandwidth and fast response times. However, weak light absorption and the absence of a gain mechanism that can generate multiple charge carriers from one incident photon have limited the responsivity of graphene-based photodetectors to ∼1022 AW21. Here, this group […]

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