Thin-film solar cells are new photovoltaic devices to alleviate the energy crisis. Thin-film solar cells can be fabricated using inexpensive ceramics, graphite, metal sheets and other different materials as substrates. The thickness of the thin-film solar cells that can generate voltage is only a few μm, and the current conversion efficiency is as high as 13%.
In addition to being flat, thin-film solar cells can be made into non-planar structures because of their flexibility. They can be used in a wide range of applications. They can be combined with buildings or become part of buildings. They are widely used.
Module structure of thin film solar cells
The thin film solar module is composed of glass substrate, metal layer, transparent conductive layer, electrical function box, adhesive material, semiconductor layer, etc.
Manufacturing Technology of Thin Film Solar Cells
Thin-film solar cells can be manufactured using inexpensive glass, plastic, ceramics, graphite, metal sheets and other different materials as substrates, and the thickness of the thin-film solar cells that can generate voltage is only a few μm. The round solar cell greatly reduces the amount of raw materials (the thickness can be more than 90% lower than that of the silicon wafer solar cell). At present, the conversion efficiency of the laboratory can reach more than 20%, and the stable efficiency of large-scale mass production is about 13%.
In addition to being flat, thin-film solar cells can also be made into non-planar structures because of their flexibility. They have a wide range of applications and can be combined with buildings or become part of buildings. In the manufacture of thin-film solar cells, they can be used. Use a variety of deposition (deposiTIon) technologies to grow p-type or n-type materials layer by layer. Common thin film solar cells include amorphous silicon, CuInSe2 (CIS), CuInGaSe2 (CIGS), and CdTe. et al.
Today, the main material used in most of the photovoltaic industry in the world is crystalline silicon cells, and monocrystalline silicon cells and polycrystalline silicon cells are dominant in the field of photovoltaic panels. The second generation of solar cells, the thin-film solar cell market, is now quietly emerging, and has opened up a new field with its unique advantages of light weight and good light transmittance.
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