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Finally, the cell bears an antireflective coating, which ensures that photons—the particles of sunlight needed to generate solar power—are absorbed by the silicon layers and not reflected away.

A solar cell is made of two types of semiconductors, called p-type and n-type silicon. The p-type silicon is produced by adding atoms—such as boron or gallium—that have one less electron in their ...

As the electrons flow through the cell, they generate electricity. On a much larger scale, solar-thermal power plants employ various techniques to concentrate the sun's energy as a heat source.

ES Foundry, a US-owned solar cell producer, has secured its first gigawatt-plus, multi-year contract with a top-tier solar module manufacturer. The cell manufacturer started production this month ...

Now, Japanese engineers "believe they have found one in a type of solar cell that looks and feels like camera film," according to The Wall Street Journal. The new cell uses perovskite, a ...