Which of the following equations correctly represents the temperature variation of energy gap between the conduction and valence bands for Si?

Options

A. `E_(g)(T)=0.70-2.23xx10^(-4)TeV`
B. `E_(g)(T)=0.70+2.23xx10^(4)TeV`
C. `E_(g)(T)=1.10-3.60xx10^(-4)TeV`
D. `E_(g)(T)=1.10+3.60xx10^(-4)TeV`

Answer

C

Explanation

The energy gap `E_(g)` depends on the temperature.
For silicon, `E_(g)(T)=1.10-3.60xx10^(-4)TeV`
For germanium, `E_(g)(T)=0.70-2.23xx10^(-4)eV`