Figure 4: Steady-state photodetector characterization.
From: Room-temperature short-wavelength infrared Si photodetector
(a) Normalized photocurrent of photodetectors for the studied atomic Se concentrations at reverse bias of 1 V. Spectral response of a commercial Si photodiode is shown for reference. All spectral photoresponses are normalized to the maximum Si photodiode response. (b) Typical room-temperature I-V curve of the photodiode at forward and reverse bias. Inset shows the net photocurrent versus voltage. (c) Net photocurrent as a function of temperature in response to the 1,550 nm illumination at reverse bias of 1 V. (d) Net photocurrent versus input optical power at a wavelength of 1,550 nm.
