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(a) The schematic illustration of cross-sectional view of photodiode. Photon window area is . (b) The side view of SEM image of SiNW arrays.
(a) characteristics of the heterojunction photodiode under different temperatures from 333 to 243 K. The inset shows current densities and reverse voltage properties under different temperatures from 333 to 243 K. (b) Log-log plots of current density vs forward-bias voltage under 333 and 303 K.
Current densities reverse-bias voltage curves under different light intensities. The inset shows forward current densities and voltage properties under different light intensities.
Photoresponsivity vs light wavelength. The inset shows photoresponsivity in the wavelength range of 600–1000 nm.
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