Question

The relation between number of free electrons (n) is a semiconductor and temperature (T) is given by

• A. n $\alpha$ T
• B. n $\alpha$ $T^2$
• C. n $\alpha$ $\sqrt{T}$
• D. n $\alpha$ $T^{\frac{3}{2}}$

Answer 1

The correct option is D n $\alpha$ $T^{\frac{3}{2}}$

For semiconductor, $n=A{T}^{\frac{3}{2}}{e}^{\frac{-E_g}{2kT}};$
So, $n\alpha T^{\frac{3}{2}}$