A solar cell is a semiconductor PV device that converts the energy of sunlight directly into electricity. The photovoltaic effect involves the creation of a voltage at PN nodal point in diffused semiconductor (silicon cell) upon exposure to radiation of daylight, and then output current gets out through electrodes printed on front and back.
At present, we can manufacture different sorts of monocrystalline or polycrystalline solar cells, among which conversion efficiency of monocrystalline ones reaches 17.80% and 15.80% for polycrystalline ones.
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