Solar cells. Close-up of the surface of solar (photovoltaic) cells, which convert light into electrical energy. Cells are made from a semi-conductor s
Solar cells. Close-up of the surface of solar (photovoltaic) cells, which convert light into electrical energy. Cells are made from a semi-conductor such as silicon (as here). When light hits it it releases electrons, which are converted into an electrical current. A grid of thin wires collects the electrons. These are polycrystalline (amorphous) cells, made from numerous small silicon crystals. This type of cell is less efficient than a single-crystal cell, but is far cheaper to manufacture. Solar power is an environmentally-friendly energy source. It does not use up limited resources and does not release toxic waste products.
Size: 4968px × 3955px
Photo credit: © MARTIN BOND/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: alternative, amorphous, array, blue, cell, cells, clean, close-, crystal, crystals, detail, eco-friendly, electrical, electricity, energy, environment, environmental, environmentally, environmentally-friendly, equipment, friendly, generation, global, green, grid, industrial, industry, metalloid, multiple, panel, photovoltaic, polycrystalline, power, renewable, renewables, science, semi-conductor, semiconductor, silicon, solar, source, surface, technological, technology, warming, wire, wires
