Question 188: Semiconductors and Logic Gates

Question

If the lattice constant of this semiconductor is decreased, then which of the following is correct?
![](https://imagex.cdn.examgoal.net/P2lnhRV0ZlseWdZmn/njlEqm5WI3SG2DIKpC5Ir0NZxPDwz/nW8dHOX6sSGrc5VHIhAknm/image.png)

Accepted Answer

A crystal structure is composed of a unit cell, a set of atoms arranged in a particular way; which is periodically repeated in three dimensions on a lattice. The spacing between unit cells in various directions is called its lattice parameters or constants. Increasing these lattice constants will increase or widen the band-gap $\left( {Eg} \right)$, which means more energy would be required by electrons to reach the conduction band from the valence band. automatically ${E_c}$ and ${E_v}$ decreases.

Answer

All ${E_c},{E_g},{E_v}$ increase

Answer

${E_c}$ and ${E_v}$ increase, but ${E_g}$ decreases

Answer

${E_c}$ and ${E_v}$ decrease, but ${E_g}$ increases

Answer

All ${E_c},{E_g},{E_v}$ decrease

Semiconductors and Logic Gates

If the lattice constant of this semiconductor is decreased, then which of the following is correct?

Choose the correct answer: