solar cell

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solar cell

n.
A photoelectric semiconductor device that converts solar energy into electric energy.

solar cell

n
(General Physics) a photovoltaic cell that produces electricity from the sun's rays, used esp in spacecraft

so′lar cell′


n.
a photovoltaic cell that converts light directly into electricity.
[1955–60]
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solar cell

An electric cell that converts visible light into electrical energy. Solar cells are used as power supplies in calculators, satellites, and other devices, and as a prime source of electricity in remote locations. Also called photovoltaic cell.
Did You Know? How can light make electricity? By exciting electrons to break free from their atoms. A solar cell has an upper layer of negatively charged silicon, with free-flowing electrons, and a lower layer of positively charged silicon, with atoms that are missing some electrons. The placing of these two charged layers next to each other creates a weak electric field. When light penetrates the solar cell and reaches the positively charged layer, its energy is absorbed by some of the electrons which, in their extra-excited state, break away from their atoms. The electric field along the surface where the two layers meet then pushes these electrons into the negative layer. Meanwhile, other electrons in the positive layer move upward into the space the first electrons left behind. In the negatively charged silicon layer, the electrons pile up, increasing the electric charge. When the two layers of a solar cell are connected to a circuit, the electrons flow out of the negative layer through the circuit and back to the positive layer, where they are attracted by the spaces left by the missing electrons. Along the way, the electrons power the inner workings of devices like calculators and spacecraft.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.solar cell - a cell that converts solar energy into electrical energysolar cell - a cell that converts solar energy into electrical energy
electric cell, cell - a device that delivers an electric current as the result of a chemical reaction
solar array, solar battery, solar panel - electrical device consisting of a large array of connected solar cells
Translations
aurinkokenno
napelem
solcell

solar cell

ncellula solare
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