Figure 2. Energy band gap of glass doped concentration 0.0%

From

A Study Optical and Physical Properties of Soda Lime Silica Glass Doped with ZnO

Ali Salih Ali, Mubarak Dirar Abdalla, Mohammedian Adam

International Journal of Physics. 2018, 6(3), 53-56 doi:10.12691/ijp-6-3-1