Alexandre Edmond Becquerel   Albert Einstein
History  
Photovoltaik-Topliste
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Markus Wojczyk
the photvoltaic In 1839, Alexandre Edmond Becquerel (1820-1891) discovered the photo electrical effect  on the basis of experiments. On experiments with electrolytic cells, where he used a  platinic anode and – cathode, between these electrodes, he measured flowing power.  Thereby, he determined that power was slightly bigger than in the dark. Therefore, he  discovered the basis for the photovoltaic, a practical application got around generations  later. Nowadays, we are able to capitalize completely on the sun energy. For that, the  sunbeams are collected; resp. bodies are subject to the sunbeams so that the radiation  can be drawn. These so called bodies are termed as “solar cell”. Already three years later, William Grylls Adams discovered together with his student  Richard Evans Day that selenium produces electricity if light is exposed. Although  selenium is not suitable to provide enough electricity in those days to electric elements,  hereby the evidence is supplied that sediment can transform light directly into electric  energy. Since the energy production of sunbeams, many further physicists and  discoverers deal with energy production. The first solar modules came up and the photo  electric effect was defined more properly and fixed.       In 1907, Albert Einstein explained the effect which bases on his light quantum hypothesis of 1905. A further important step for the principles of (semi-conductor)/solid-state  technology and photovoltaic was the crystal-procedure, discovered by Jan Czochralski  and named after him. It was refined not until 1950’s with a high demand of semi-  conductor components in bigger scale for practical application.
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