Industry News-Jiangyin Shenglite new energy Co., Ltd.-Photovoltaic Tempered Glass-Antir Eflective Glass

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What process is used to make solar photovoltaic glass?

Sep 30,2022

First, weigh the glass raw materials according to the formula requirements, and then mix them evenly. Then, use the feeder to put the batch into the glass furnace. By controlling the temperature in the glass furnace, the batch can be melted at a high temperature of about 1600 ℃. Control certain temperature requirements to make the glass complete the process of clarification, homogenization, cooling, etc., and then make the glass by calendering or float molding. It is mainly to control the iron content in the process of batching, melting and molding, so that the transmissivity of the glass can reach 91.6%, and the defects should be lower than a certain requirement.

How thick is photovoltaic glass used for solar energy?

Sep 30,2022

Generally, glass with a thickness of 3.2cm is used. (3.2cm/4cm/) The strength is tested under certain conditions: 227 grams of steel balls fall freely at a height of 1 meter, and the glass does not break Generally speaking, the light transmittance can reach 91% as long as the photovoltaic glass is professionally produced The steel degree you mentioned is also obtained under certain operation: more than 40 grains within the range of 50 * 50 are qualified

What are the classifications of solar photovoltaic glass

Sep 30,2022

Classification of photovoltaic glass. Photovoltaic glass substrates for solar cells generally include ultra-thin glass, surface coated glass, low iron content (ultrawhite) glass and other types. According to the nature of use and manufacturing method, photovoltaic glass can be divided into three products, namely, the cover plate of flat panel solar cells, which is generally calendered glass; A thin film battery conductive substrate made of semiconductor materials with a thickness of only a few microns is plated on the surface of the flat glass; Glass of lens or reflector type used in the collector photovoltaic system. The characteristics and functions of these three products are completely different, and their added values are also very different.

What is the difference between photovoltaic glass and crystalline silicon?

Sep 30,2022

1. Difference in appearance and morphology Monocrystalline silicon: the battery piece is square, round and dark blue; Polysilicon: The battery is square and sky blue. 2. Difference in conversion rate: monocrystalline silicon: 16-18%, high conversion rate in laboratory can reach 25%, high photoelectric conversion efficiency, high reliability, and slightly high power generation; Polycrystalline silicon: 14-16%, the high conversion rate in the laboratory can reach 20.4%, and the photoelectric conversion efficiency is slightly low. 3. Comparison of single and polycrystalline silicon cell photovoltaic industry chains, from silicon materials to silicon rods, silicon chips, batteries, components to systems. The difference between single crystal and polycrystalline mainly lies in the preparation of raw materials. Single crystal silicon is the czochralski lifting method, polycrystalline silicon is the doomed method, and the back-end manufacturing process is only slightly different. 4. Difference in crystal quality Monocrystalline silicon wafer is a complete lattice arrangement: polycrystalline silicon wafer, which is a combination of multiple small single crystals, has defects and many impurities, thus reducing the conversion efficiency of polycrystalline battery. The comprehensive effect of various factors makes the monocrystalline silicon photovoltaic module dozens of times higher than the polycrystalline silicon, which shows the advantages of conversion efficiency. 5. Comparison of minority carrier lifetime of single polysilicon with electrical performance difference. The blue represents the area with higher minority carrier lifetime, and the red represents the area with lower minority carrier lifetime. It is obvious that the minority carrier lifetime of single crystals is significantly higher than that of polycrystals.

What are the differences between solar coated glass and photovoltaic glass

Sep 30,2022

Solar coated glass is divided into low radiation glass or LOW-e glass for building curtain wall, or glass with sound insulation and heat insulation functions of some coating layers. It is uncertain whether it refers to this part. In addition, there is a TCO transparent conductive film coated glass for the amorphous silicon glass of solar energy. It is an amorphous silicon film module made by etching, welding wires and other processes. It also belongs to the field of solar energy coating, or can be said to be a photovoltaic glass. In addition, some commonly known double glass modules in recent years are frost wave photovoltaic modules, which are composed of two pieces of glass and a thin layer of super white subway tempered glass+film+silicon cell sheet+film+tempered glass base plate on the upper surface. They belong to photovoltaic glass. There is also a common one, called ultra white low iron textured (embossed) glass cover, which is usually a 3.2mm tempered ultra white embossed glass+film+silicon cell sheet+film+backplane battery module. It can be divided into monocrystalline silicon and polycrystalline silicon cell modules according to different silicon chips. However, this glass can also be coated with AR antireflection and antireflection coatings, which is also a kind of photovoltaic glass, also called solar AR coated glass.

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