Semiconductor materials are beneficial in their performance and can be
easily deployed by the addition of impurities known as doping. The resistivity of the
semiconductor can be changed by incorporating the electric or magnetic field, light
or heat, or mechanical distortion. Therefore, semiconductors can make excellent
devices. Current conduction in a semiconductor happens due to free electrons and
holes, jointly known as charge carriers. Doping of silicon significantly increases the
number of electrons or holes within the semiconductor, making it “p-type” or “n-type.” This doping characteristic is a blessing to make a possible number of devices
like LED, Tunnel diode, Solar cells, and many more, which have been discussed in
this section.
Keywords: DIAC, LED, PIN Diode, Tunnel diode, Thyristor, TRIAC, Solar Cell.
