Light micrograph of a polycrystalline silicon solar cell. It produces electricity from sunlight (photovoltaic effect), a clean, renewable and ecological energy. The upper surface of the photovoltaic cell is an n-type layer, made of silicon semiconductor material. The blue coating layer of the microcrystals is made of silicon nitride for an anti-reflective effect. In this type of polycrystalline cell, the recombination produced in the boundaries of the faulty crystals reduces the photovoltaic efficiency. Field of view size: 297 x 445 繕m (0.012 x 0.018 in)

px px dpi = cm x cm = MB
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TOP19885570

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達志影像

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RM

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須由TPG 完整授權

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