Monocrystalline,and,polycrysta business, insurance Monocrystalline and polycrystalline introduction and differe
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Although from the current situation, to make solar power have a large market, acceptedby the majority of consumer, it must improve the photoelectric conversionefficiency of solar cells, reduce production costs. From the currentdevelopment of the international solar cell can be seen that its developmenttrend was monocrystalline silicon, polycrystalline silicon, ribbon silicon,thin film materials (including microcrystalline silicon thin film, compoundbase film and dye film).Thedaily seen solids can be divided into two major categories of non-crystal andcrystal, the internal atomic arrangement of non-crystalline material without acertain rule, when fracturing, the fracture is random, such as plastic andglass, but the substance called crystal, its appearance represent natural regularpolyhedron, with a clear edge and flat, the atoms are in accordance withcertain rules arranged together neatly, so that when broken off it also accordingto a certain plane, such as salt, crystal and so on .Accordingto metal powdersupplier, some crystals are composed ofmany small grains, if the arrangement between grains without rules, this crystalcalled polycrystalline crystal, such as copper and iron. But there are also havea crystal that it itself is a complete large grain, this crystal called singlecrystal, such as crystal and diamond.Monocrystallinecells have good cell conversion efficiency, good stability, but the cost ishigher. Polycrystalline silicon with low cost, conversion efficiency slightly lowerthan monocrystalline silicon solar cells, a variety of defects in materials, suchas grain boundaries, dislocations, micro defects and impurities of carbon andoxygen in the material, as well as the contamination transition metal in the process.Monocrystalline silicon can be used for diode, rectifier level, circuit leveland the production and deep process manufacturing of solar cell grademonocrystalline products, its subsequent product integrated circuits and semiconductorseparation devices have been widely used in various fields, in the militaryelectronic equipment also occupies an important position.In thephotovoltaic technology and micro semiconductor inverter technology rapiddevelopment today, solar cells produced by using monocrystalline silicon can bedirectly turned solar energy into light energy, achieve a move towards greenenergy revolution. Now, the international solar photovoltaic power plant hasreached a theory mature stage, is translating to the practical applicationstage, the utilization of solar monocrystalline silicon will be spread to allover the world, the market demand is self-evident.Monocrystallinesilicon products including round rods, sheets and square rods, sheets, suitablefor a variety of semiconductor, electronics production, its products qualityinspected through the current world's most advanced testing equipment, reachedthe world advanced level. Uses: It is a raw material for manufacturingsemiconductor silicon devices, used for producing power rectifiers, powertransistors, diodes, switching devices.Polysiliconis the direct feedstock to produce monocrystalline silicon, is the electronicinformation base material of contemporary artificial intelligence, automatic control,information processing, photoelectric conversion and other semiconductordevices, referred to as "the cornerstone of microelectronics building".Polysilicon is a form of elemental silicon. Obtain by dry silicon powder and dry hydrogen chloride gas chloridized under certain conditions,then by condensation, distillation, reduction. When molten elemental siliconsolidified in cold conditions, the silicon atoms are in a form of diamondcrystal arranged to a plurality of nuclei, if these nuclei grow into crystalorientation different grains, then these grains combined with each other, andcrystallize into polysilicon. Polysilicon can be used for the material ofpreparing single crystal silicon, the differences between polycrystalline andmonocrystalline was mainly in the physical properties. Source:http://www.mhcmp.com Article Tags: Conversion Efficiency, Solar Cells, Monocrystalline Silicon
Monocrystalline,and,polycrysta