At 0 K temperature,the valence band in semic | vedclass

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Question

(A) In semiconductors,at $0 \ K$ temperature,there is no thermal energy available for electrons to jump from the valence band to the conduction band.

Vedclass · Accepted Answer

Completely filled

Vedclass · Answer

(A) In semiconductors,at $0 \ K$ temperature,there is no thermal energy available for electrons to jump from the valence band to the conduction band. Since the valence band is the highest energy band that is occupied by electrons at absolute zero,it remains completely filled with electrons. The conduction band,on the other hand,remains completely empty at $0 \ K$ because no electrons have gained enough energy to cross the forbidden energy gap.

At $0 \ K$ temperature,the valence band in semiconductors is .....

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