Theory of solar energy
The theory of solar cells explains the process by which light energy in photons is converted into electric current when the photons strike a suitable semiconductor device. As a simplification, one can imagine bringing a layer of n-type silicon into direct contact with a. -semiconductor contacts are made to both the n-type and p-type sides of the solar cell, and the connected to an external load. The photon can pass straight through the semiconductor — this (generally) happens for lower energy photons. drift of carriers, driven by the electric field, with electrons being pushed one way and holes the other way An model of an ideal solar cell's p–n junction uses an ideal (whose photogenerated current $${\displaystyle I_{\text{L}}}$$ increases with light intensity) in parallel.
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