Fig. 2: Sensor mode of the MM-SFGM for ISC.
a Photocurrent mapping images of the homojunction at n-p and p-n states. b Linear and symmetric photoresponsivity update between ±80 mA W–1 by applying paired VG pulses with opposite polarities (±1.2 V, 20 ns). c Precise modulation of the photoresponsivity between various levels by applying corresponding numbers of paired VG pulses to the split control-gates. d Long-term retention characteristics of the photoresponsivity at 17 distinct states. e Cyclic endurance of the photoresponsivity for 106 cyclic test. f Cumulative probability distribution of the photoresponsivity with respect to 15 discrete states for 1000 repetitions. g Photocurrents of the device with photoresponsivity of 80 mA W-1 (pink) and –80 mA W–1 (blue) while applying an optical pulse with different widths. Error bars denote the standard deviation from 10 measurements. h Light-intensity dependence of the photocurrents for the device at 17 distinct photoresponsivity states. i Top and right axes: Linear fitting between the hardware output photocurrents and expected values of the analog-analog multiplications for 1000 randomly generated light intensities (0–125 nW) and photoresponsivities (–80 to 80 mA W–1). Bottom and left axes: Statistical distribution of the current differences between experimental and ideal results.
