Figure 1
From: Photocapacitive CdS/WOx nanostructures for solar energy storage

SEM images depicting the aggregated nanoparticles of CdS (a) and the WOx nanowires present in CdS/WOx (b); the WOx nanowires resemble the corresponding WOx nanostructures observed in a core-shell Ta3N5/WOx composite from a previous report59, which is employed herein as a reference sample.