Edmond Becquerel (1820-1891) was a French physicist and inventor, best known for his discovery of the photovoltaic effect, which is the principle behind solar cells. In 1839, he observed that certain materials would produce an electric current when exposed to light. This foundational work laid the groundwork for the development of solar energy technology. Becquerel's contributions to physics extended beyond photovoltaics; he also studied luminescence and the properties of light.
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