Figure 1From: Quantum dot-doped porous silicon metal–semiconductor metal photodetectorElectron microscopic images, and PL spectrum and images of PS and QDs. (a) Cross-sectional SEM image of PS and corresponded PL spectrum and emission image. (b) Transmission electron microscopy (TEM) image of ZnS/CdSe core shell QDs and corresponded PL spectrum and emission image. (c) Schematic setup of spectral photoresponsivity measurement.Back to article page