fig1

Figure 1. (A) XRD pattern of screen-printed 0-2 wt% APM films; SEM images when the contents of MWCNTs are (B) 0 wt%, (C) 0.5 wt%, (D) 1 wt%, (E) 1.5 wt%, and (F) 2 wt%; (G and H) High-magnification SEM images of the 0.5 wt% APM film; (I and J) Low- and (K and L) high-resolution HRTEM images of the 0.5 wt% APM film. XRD: X-ray diffraction; MWCNTs: multi-walled carbon nanotubes; APM: Ag₂Se/polyvinyl pyrrolidone/MWCNTs; SEM: scanning electron microscope; HRTEM: high-resolution transmission electron microscope.