GENERAL KNOWLEDGE

Detailed explanation-1: -When sunlight strikes a solar cell, electrons in the silicon are ejected, which results in the formation of “holes”-the vacancies left behind by the escaping electrons. If this happens in the electric field, the field will move electrons to the n-type layer and holes to the p-type layer.

Detailed explanation-2: -Quartz sand or also known as silica sand is a material that can be developed for the manufacture of solar panel materials.

Detailed explanation-3: -The silicon in solar panels is manufactured through a reduction process in which the silica is heated with a carbon material and the oxygen is removed, leaving behind purer, metallurgical-grade silicon. From there, the grade must be further purified into polysilicon, the solar-grade purity of which is 99.999 percent.