Figure 5. Transient photocurrent response of the photodetector.

(a) Photocurrent response to a 100 μs light pulse at 528 nm with an incident power density equal to 10 mW cm⁻². (b) Transient photocurrent response at a pulse frequency above the cut-off frequency (200 kHz). (c) Measured cut-off frequency (f_−3dB) in Hz at −2 V reverse bias.