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. 2023 Jul 24;12:180. doi: 10.1038/s41377-023-01223-1

Fig. 4. Working mechanism of dynamic current decay in the γ-InSe device.

Fig. 4

a Top: an enlarged adaptation curve upon 532 nm laser irradiation that can be divided into four stages (I, II, III, and IV). Bottom: schematic illustrations of dynamic current decay, corresponding to the four stages denoted in top panel. b Temperature-dependent real-time IDS upon 532 nm laser irradiation (power intensity: 60 mW/cm2) from 288 to 300 K at zero bias and without cooling. c Normalized real-time IDS excited by 480 nm, 530 nm, 640 nm light at the same power density of 60 mW/cm2 with different areas of light illumination under zero bias voltage, including a small illumination area of about 60 μm2 (labeled as 1) and a large one of about 360 μm2 (labeled as 2)