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The principle of photovoltaic power generation
Apr 20, 2018

The basic principle of photovoltaic power generation is "photovoltaic effect". When the photon is irradiated to the metal, its energy can be absorbed by a certain electron in the metal. The energy of the electron is large enough to overcome the work of the gravitational force inside the metal and escape out of the metal surface and become a photoelectron.

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Light causes the potential difference between different parts of an uneven semiconductor or semiconductor bonded to metal. First, the process of converting photon (light wave) into electron and light energy into electric energy is followed by the formation of voltage process. With a voltage, it is like building a dam. If the two are connected, a current loop will be formed.