Evolution of Solar Cells

With the non-renewable sources of nature diminishing and the global warming effect increasing, Solar energy is vital in the present times considering the fact that the power demand in the world is a never ending process. And the emergence of the solar cells in the 19th century has signified the importance of solar energy today, in our lives. A solar cell is a device converting the sunlight energy directly into electricity with the use of the photovoltaic effect. The term “photovoltaic” is used since 1849, derived from Greek ‘phos’ meaning “light” and ‘voltaic’ meaning “electric” from the name of the Italian physicist Volta. These solar cells or the photovoltaic cells today are used to make solar panels, solar modules, or photovoltaic arrays.

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