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. 2017 Oct 20;6(10):e17113. doi: 10.1038/lsa.2017.113

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Copyright © 2017 The Author(s)

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Performance of the graphene-based PSD. (a, b) Photocurrent and responsivity as a function of distance at V_D=1 V under different weak light powers using 514 nm wavelength. (c) The transient response of the device at 5 μm away from graphene, and light switched on or off by an acoustic optical modulator with frequency of 10 kHz. Light power=~400 nW, V_D=1 V. (d) The distance dependence of the rise time of the device under different illumination intensity.