Introduction to the working principle of solar panels

All say solar panels to power generation, but many people don't know power generation principle of solar panels, let solar panels, solar street light to share with you is how to work. Solar cells of light energy into electricity

all say solar panels to power generation, but many people don't know power generation principle of solar panels, let solar panels, solar street light to share with you is how to work. Solar cell components of light energy into electricity, but there are a lot of material that the light energy into electricity,, such as gallium arsenide, copper indium selenium, amorphous silicon and monocrystalline silicon, polycrystalline silicon, monocrystalline silicon and polycrystalline silicon two commonly used in the market as the main materials of solar panels, one of the reasons is its high photoelectric conversion rate, and gallium arsenide lamp material than the energy conservation and environmental protection. In the work of the single crystal silicon, for example: p-type crystalline silicon after doped phosphorus available N type silicon, forming P - N junction. When light solar cell surface, part of photons absorbed by the silicon material; The photon energy transfer to the silicon atoms, resulted in higher in the electronic, become free electrons in the P - N junction on both sides of the agglomeration formed the potential difference, when external processing circuit, under the action of the voltage, there will be a current through the external circuit to produce the output power. The essence of this process is: the process of the photon energy into electricity.