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Question: Which of the following equations correctly represents the temperature variation of energy gap betwee...

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

A

Eg(T)=0.70−2.23×10−4TeVE_{g}(T) = 0.70 - 2.23 \times 10^{- 4}TeV

B

Eg(T)=0.70+2.23×10−4TeVE_{g}(T) = 0.70 + 2.23 \times 10^{- 4}TeV

C

Eg(T)=1.10−3.60×10−4TeVE_{g}(T) = 1.10 - 3.60 \times 10^{- 4}TeV

D

Eg(T)=1.10+3.60×10−4TeVE_{g}(T) = 1.10 + 3.60 \times 10^{- 4}TeV

Answer

Eg(T)=1.10−3.60×10−4TeVE_{g}(T) = 1.10 - 3.60 \times 10^{- 4}TeV

Explanation

Solution

: the energy gap EgE_{g}depends on the temperature

For silicon,

Eg(T)=1.10−3.60×10−4TeVE_{g}(T) = 1.10 - 3.60 \times 10^{- 4}TeV

For germanium

Eg(T)=0.70−2.23×10−4TeVE_{g}(T) = 0.70 - 2.23 \times 10^{- 4}TeV