Solar energy engineering

In the series of silicon solar cells, which kind of battery is of the highest conversion rate? Can not doubt, that is, monocrystalline silicon solar battery, it is not only the highest conversion rate, technology is also the most mature at the same time. And high-performance monocrystalline cells is based on high quality

in silicon solar cells, which kind of solar cell has the highest conversion rate? Without a doubt, monocrystalline silicon solar cells have the highest conversion rate and the most mature technology. High-performance monocrystalline cells, however, is based on high quality single crystal silicon materials and heat treatment technology. Today, monocrystalline silicon electrical grounding technology is becoming more and more mature, because in the manufacture of batteries before, usually adopt surface texture, the doping emitter passivation and partition, all kinds of technologies such as and the development of battery is mainly plane monocrystalline silicon cells and groove buried gate electrode monocrystalline cells. However, to improve the efficiency of conversion, processing mainly depends on monocrystalline silicon surface microstructure and ribbon doping process. In this regard, the German fraunhofer institute for solar system has remained the world's leading level. The institute was carried out on the cell surface texture treatment using the lithography technology, form the inverted pyramid structure. At the same time, in combination of nanometres thick oxide surface passivation layer and two layer minus reflection membrane, and then increase the ratio of high to width of the gate by improving electroplating process; And then by the method of the battery conversion efficiency over 23%, the maximum can reach 23. 3%. At present, the preparation of large area kyocera ( 225cm2) Single crystal solar cell conversion efficiency can be up to 19. 44%, plane high-efficiency monocrystalline silicon cell conversion efficiency can be up to 2 cm * 2 cm

2 cm) The conversion efficiency of 19. 79%, while the trench buried gate electrode crystalline silicon cells ( 5 cm x 5 cm) Conversion efficiency is 8. 6%. Therefore, in general, monocrystalline silicon solar cell conversion efficiency is the highest natural, which makes it in the large scale application and industrial production is still occupying very important position.