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Circular photovoltaic or solar cell.

T155/0095

Rights Managed

37.7 MB (2.9 MB compressed)

4026 x 3271 pixels

34.0 x 27.7 cm · 13.4 x 10.9 in (300dpi)

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Credit

ROSENFELD IMAGES LTD / SCIENCE PHOTO LIBRARY ROSENFELD IMAGES LTD / SCIENCE PHOTO LIBRARY

Caption

Solar cell. Circular photovoltaic or solar cell. Photovoltaic cells are made of a semiconductor such as silicon or gallium arsenide. The electrons in the semiconductor are only loosely bound to their atoms. These electrons can be liberated by the addition of energy. Electrons released by light energy are collected by the grid of wires which run over the cell's surface to make an electric current.