Find the electron and hole mobilities, and the resistivity of intrinsic silicon at 300K. Is intrinsic silicon a semiconductor

Resistivity = 231.481 K Ohm

Yes, Intrinsic Silicon is the semiconductor.

Explanation:

Solution:

At 300K:

Let suppose mobility of electron in intrinsic semiconductor =

Mobility of electron in intrinsic semiconductor is:

 = 1300 /volt.sec

Let suppose mobility of hole in intrinsic semiconductor =

= 500 /volt.sec

We know that, intrinsic silicon semiconductor has equal number of holes and electrons. So,

At 300 K

Intrinsic Carrier Concentration = 1.5 x / = C

And,

Conductivity of intrinsic Silicon is:

σ = C x ( + ) e

e = 1.6 x C

So, plugging in the values, we get:

σ = C x ( + ) e

σ = 1.5 x x (500 + 1300) x 1.6 x

σ = 4.32 x

So, now we can find the resistivity.

Resistivity = 1/σ

Resistivity = 1/ 4.32 x

Resistivity = 231.481 K Ohm

Yes, Intrinsic Silicon is the semiconductor.

the temperature and the pressure affect solubility. temperature affects by changing the properties of the solvent. the increase in pressure increases solubility, the decrease in pressure decreases solubility.

answer: 31, 5556. 952 seconds