How is solar energy transformed into electricity?
heyy, in school like right now and i need the answer to this question!!!!!!!!!!Our teacher is evil so im keeping this short and sweet!!!
They use what's called a photodiode. It's a semiconductor made mostly from silicon. photons from the sun strike the material and excite the electrons in it.
the electron is moved from a valence energy level, (where it takes part in bonding the material together) to a level where it breaks free of the valence and is allowed to flow freely.
The electron flows through the material, and the hole it left behind is filled with an electron form the atom next to it, thus the hole flows in the opposite direction and is filled in at the outer most extremity by a free roaming electron from space.
In this way an electrical current flows through the material.
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