4.3. Section C: Co2+-doped ZPB glasses The XRD pattern of the Co2+:ZPB glass has been shown in Fig. 13, which confirms the amorphous nature. Based on the UV absorption spectra of Co2+:ZPB glasses (Fig. 14), both direct and indirect optical band gaps
4.3. Section C: Co2+-doped ZPB glassesThe XRD pattern of the Co2+:ZPB glass has been shown in Fig. 13, which confirms the amorphous nature.Based on the UV absorption spectra of Co2+:ZPB glasses (Fig. 14), both direct and indirect optical band gaps