solar cell

Device used to convert solar energy directly into electric energy (photovoltaic effect).

solar radiation

All the electromagnetic waves emitted by the Sun.

antireflection coating

Coating product that is deposited on the negative region to reduce light reflection and optimize solar radiation absorption.

negative region

Layer of semiconductive material (silicon) to which phosphorous is added to release electrons.

positive region

Layer of semiconductive material (silicon) to which boron is added to produce a layer with insufficient electrons.

positive/negative junction

Contact area in which electrons are exchanged between two layers to create an electric current; radiation moves the charges between these regions to create voltage.

positive contact

Metal element that ensures that the electric current flows through the circuit to which it is attached.

negative contact

Metal element that ensures that the electric current flows through the circuit to which it is attached.

metallic contact grid

Metal grille that collects the electric current being generated.