Table 2: The calculated band gap energy of ZnO-SiO2, Img: Pt-ZnO-SiO2, and PAD: Pt-ZnO-SiO2.

SampleBand gap energy (eV)

ZnO-SiO23.40
Img: Pt-ZnO-SiO23.25
PAD: Pt-ZnO-SiO23.05