Monocrystalline silicon wafers widely used in commercial photovoltaic cell production. A substantially improved efficiency for a monocrystalline silicon solar cell. The improved monocrystalline cell performance results from enshrouding cell surfaces in thermally grown oxide to reduce their detrimental electronic activity and from isotropic etching to form an hexagonally symmetric “honeycomb” surface.The wafer length is 125-156mm,diagonal length is 150-165 mm and different sizes are available.
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