Chapter 21, Problem 21.127CHP

Interpretation Introduction

Interpretation:

The molecular orbital diagram and electron population of doped $\text{ZnSe}$ has to be drawn.  Also the reason for substitution of gallium in zinc form n-type semiconductor has to be explained.

Concept introduction:

Semiconductor: A material which can conduct electricity in range between a metal and an insulator is known as semiconductor.  Addition of small amount of impurities increases conductivity of semiconductor and the process is known as doping.  n-type and p-type are two types of doped semiconductors.

n-type: This is a type of doped semiconductor in which many free electrons are present in conduction band.

p-type: This is a type of doped semiconductor in which holes are present in valence band.