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Solar Cells Can Also Be Recycled

- Dec 22, 2017 -

   Among the effective utilization of solar energy, solar energy photovoltaic utilization is the fastest growing and most dynamic research field in recent years, and is one of the most watched projects, with the recovery of silicon solar cell manufacturers. Production of solar cells is mainly based on semiconductor materials, its working principle is the use of photovoltaic materials to absorb light after photoelectric conversion reaction, according to the different materials used, solar cells can be divided into: 1, silicon solar cells; 2, inorganic Salts such as gallium arsenide III-V compounds, cadmium sulfide, copper indium selenium and other compounds for the battery material; 3, functional polymer materials prepared large solar cells; 4, nanocrystalline solar cells.

  Today I will introduce silicon solar cells. Crystalline and non-crystalline solar panels: In the fierce sunlight, monocrystalline solar panels can convert more than double the solar power to non-crystalline ones, but it is a pity that the price of single crystals is more than two or three times that of non-crystalline ones, And in the case of cloudy days, the noncrystal type can instead collect as much solar energy as the crystal type. The basics of solar cells The first solar cell is the single crystal silicon solar cells. Silicon is a very rich element on the earth, almost all over the existence of silicon, can be said to be inexhaustible, the use of silicon to make solar cells, raw materials can be described as lacking. However, refining it is not easy, so my company as a manufacturer of silicon solar cells, solar cells and other professional recovery of products. As refining is not easy so people in the production of monocrystalline silicon solar cells at the same time, also studied the polycrystalline silicon solar cells and amorphous silicon solar cells, solar cell production scale so far has not yet out of the silicon series. In particular, the importance of silicon solar cells, silicon solar cell manufacturers to recruit professional and long-term needs.

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  First, the use of solar cells The photovoltaic effect of solar energy into electrical energy. For a silicon cell, its open circuit voltage is 0.48 to 0.6 V under standard conditions (spectral illuminance: 100 W / m 2, spectrum: AM1.5, temperature: 25 ° C). A plurality of single solar cells are connected and encapsulated to form solar cell modules with different areas and different powers, which may also be collectively referred to as solar panels.

  Solar cells are devices that respond to light and convert light energy into electricity. There are many kinds of materials that can produce photovoltaic effect, such as single crystal silicon, polycrystalline silicon, amorphous silicon, gallium arsenide, selenium indium copper and the like. The principle of their power generation is basically the same, the crystal is now an example to describe the process of photovoltaic power generation. P-type crystalline silicon doped with phosphorus can be N-type silicon, the formation of P-N junction.

   When the light shines on the surface of the solar cell, a part of the photons are absorbed by the silicon material. The energy of the photons is transferred to the silicon atoms, which cause the electrons to migrate. As the free electrons gather on both sides of the PN junction to form a potential difference, , Under the action of this voltage, there will be a current flowing through the external circuit to produce a certain output power. The essence of this process is: the process of converting photon energy into electrical energy.

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