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Oct 1st-Energy - Coggle Diagram
Oct 1st-Energy
Photovoltaic
made of semiconductor materials
absorb photons
emitted by
sun and generate
flow of electrons
Photons
elementary particles
carry solar radiation
at speed of 300000 km/sec
Strike
semiconductor material like silicon
they release
electron from its atoms
leaving behind
vacant space
stray electrons
move around randomly
looking for another hole to fill
In 1920s
Albert Einstein
reffered them "grains of light"
In 1839
Edmond Becquerel
French physicist
electronic component
generates electricity
when exposed to photons
or particles of light
this conversion
called photovoltaic effect