What are n-type and p-type semiconductor?

What are p-type and n-type semiconductors?

A p-type semiconductor is

n-type semiconductor is

How are n-type and p-type semiconductors formed ? Give one example in each case.

Assertion:Diode is a combination of n-type and p-type semiconductors. Reason: The solar cell is an efficient photo-diode used for conversion of light energy into electrical energy .

Explain with suitable examples the following : (a) n-type and p-type semi-conductors (b) F-centres (c) Ferromagnetism.

(a) What is meant by the terms: (i) a full wave rectifier (ii) a photodiode (iii) a LED? (b) Draw energy band diagrams of n-type and p-type semiconductors at temperature T gt 0 K. Mark the donor and acceptor energy levels with their energies.

An n-type semi- conductor is

A N - type semiconductor is

Classify each of the following as being either a p-type or an n-type semiconductor a. Ge doped with In b. B doped with Si