Figure 3From: Broadband Ge/SiGe quantum dot photodetector on pseudosubstrateResponsivity spectra under different applied biases of Ge/SiGe QDIP. The applied voltages are ±0.05, ±0.1, ±0.5, ±1.0, ±1.5, ±2.0, ±2.5, and −3.0 V. The sample temperature is 90 K.Back to article page