Figure 2
From: Photocapacitive CdS/WOx nanostructures for solar energy storage

XRD diffractograms measured from CdS (a) and CdS/WOx (b), with the peaks indexed to α-CdS (JCPDS number 41–1049), β-CdS (JCPDS number 10–0454) and W18O49 (JCPDS number 71–2450) indicated by black, grey and white circles, respectively.