Distinguish between intrinsic semiconductors and extrinsic semiconductors

Correct Answer - `9xx10^(4)Omegacm, 11.1xx10^(-6)Scm^(-1)`

Correct Answer - `96x10^(16)m^(-3)`

Correct option is A) Iris

A broad classification of semiconductors can be: 1. Elemental semiconductors: Silicon, germanium  2. Compound Semiconductors: Cadmium sulphide, zinc sulphide, etc.  3. Organic Semiconductors: Anthracene, doped pthalocyanines, polyaniline etc.

1. Electrical properties of semiconductors are different from metals and insulators due to their unique conduction mechanism. 2. The electronic configuration of the elemental semiconductors plays a very important role in...

1. The 4 valence electrons of C, Si or Ge lie respectively in the second, third and fourth orbit. 2. Energy required to take out an electron from these atoms (i.e.,...

A pure semiconductor is blown as intrinsic semiconductor.

The electric conductivity of an intrinsic semiconductor is very low at room temperature; hence no electronic devices can be fabricated using them. Addition of a small amount of a suitable...

The semiconductor with impurity is called a doped semiconductor or an extrinsic semiconductor.

1. These are materials doped with trivalent impurity atoms (acceptors). 2. Electrical conduction in these materials is due to majority charge carriers i.e., holes. 3. The acceptor atoms acquire electron and become...