MULTI/ POLY CRYSTALLINE

Multi crystalline silicon or Polycrystalline solar cells, as the name implies, it consists of several crystals of silicon in a single PV cell. The cells are manufactured from cast square ingots, produced by cooling and solidifying molten silicon. The liquid silicone is poured into blocks which are cut into thin plates. The solidification of the material results into cells that contain many crystals, making the surface of the polysiicon cells less perfect than its monosilicon counterpart.
This polycrystalline solar cells were introduced in the market in the year 1981.The efficiency, which is typically around 20%. The cells come in the sizes of 156mm, 156.75mm, 157mm, 157.5mm, 158mm, 158.75mm, 166mm, 210mm. The number of busbars varies from 5BB to 12BB. The cells look like square in shape, thickness varying from 160 micron to 200 micron and blue in colour.