This plot gives band gap energies viz. 3.26 eV for pure ZnO and 3.19, 3.09, 2.98 and 2.96 eV for Sn–ZnO with Sn concentrations 0.25, 1, 5 and 10 wt.%, respectively.
This plot gives band gapenergies viz. 3.26 eV for pure ZnO and 3.19, 3.09, 2.98 and2.96 eV for Sn–ZnO with Sn concentrations 0.25, 1, 5 and 10 wt.%,respectively.