When was the photovoltaic cell invented?

1839
1883
1946
1958
The first experimental photovoltaic cell has been built by Edmund Becquerel, French physicist aged 19 at the time, in his father garage in 1839. In 1883 Charles Fritts created the first solid state cell.
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Answers by country

1839
1883
1946
1958
answers
flagthe United States
50%
30%
0%
20%
10
flagthe United Kingdom
30%
20%
10%
40%
10
flagPoland
19%
33%
27%
20%
498