🔬 Discovery

Discovery of the photovoltaic effect

Descubrimiento del efecto fotovoltaico

Date
1839 · confidence high
Place
Paris, France
Credited to
Edmond Becquerel
Field
Cosmos & Earth

What was discovered

At just 19, Edmond Becquerel observed, in his father's laboratory, that platinum electrodes immersed in a solution generated an electric current when exposed to light: the first observation of the photovoltaic effect.

The Wikidata candidate credits Antoine César Becquerel, but it was actually his son Edmond Becquerel, then 19, who made the discovery in his father's laboratory; corrected here following Wikipedia.

What it led to

  • First selenium solar cell (Charles Fritts, 1884)
  • Silicon photovoltaic solar cell (Bell Labs, 1954)
  • Photovoltaic energy as a renewable electricity source
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Made possible

Links

Sources✓ verified 2026-09-28