Samlex Solar SCC-30AB Mode D'emploi page 7

PV / Solar Cell
The basic element of a PV System is the photovoltaic (PV) cell, also called a Solar Cell.
An example of a PV / Solar Cell made of Mono-crystalline Silicon is shown in Fig. 2.3.
This single PV / Solar Cell is like a square, but with its four corners missing (it is made
this way!).
Theory of Operation of PV / Solar Cell
A PV / Solar Cell is a semiconductor device that can convert solar energy into DC
electricity through the "Photovoltaic Effect" (Conversion of solar light energy into
electrical energy). When light shines on a PV / Solar Cell, it may be reflected, absorbed,
or passes right through. But only the absorbed light generates electricity.
GENERAL DESCRIPTION OF PV / SOLAR SYSTEM
Fig. 2.3. PV / Solar Cell
Encapsulate seal
Top electrical contact
P-Type material
(Boran-doped Silicon)
P/N junction
N-Type material
(Phosphorous-doped Silicon)
Base contact
Fig. 2.4. Construction and Working of PV / Solar Cell
12cm
Sunlight (photons)
External circuit
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