Question

What determine the mobility of charge carriers in crystalline materials

Answer 1

the mobility of a charge carrier is the drift velocity acquired by it in a unit electric field. it is given as:

$\mu =\frac{\vartheta }{E}=\frac{q\tau }{m}$

where $\tau$ is the relaxation time, which depends on temperature and intertomic distance, charge carrier cocentration.

is the charge on the charge carrier

is the mass of charge carrier