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Materials and Components - Engineering

Q1:

The carrier mobility in a semiconductor is 0.4 m2/Vs. Its diffusion constant at 300 K will be (in m2/s)

A 0.40

B 0.16

C 0.04

D 0.01

ANS:D - 0.01

Electrical mobility equation, for diffusion of charged particles.

D = (ukT)/q.

Where,
u - Carrier mobility.
k - Boltzmann's constant.
T - Temperature in Kelvin.
q - Charge particles.