Define a semiconductor? Describe the two main types of semiconductors when it is doped with
Semiconductors are materials whose conductivity is between that of metals (conductors) and insulators. Both n-type and p-type semiconductors are common. (a) group 13 element, (a)- A semiconductor of the n-type Only four of the five valance electrons of each impurity atom participate in the formation of covalent bonds when a silicon crystal is doped with group-15 elements, such as P, As, Sb, or Bi. The fifth electron is almost free to conduct electricity. An n-type semiconductor is a silicon that has been doped with group-15 elements. (b) group 15 element. (b)- B, Al, Ga, or In impurities in silicon crystals establish just three covalent connections with the host atoms. The hole created by the absence of the fourth electron, t, causes the crystal's conductivity to rise. A P-type semiconductor is silicon that has been doped with a group-13 element.
