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Which consequence results when temperature decreases in semiconductors?

A)Increased electron mobility within band
B)Band gap energy magnitude increases
C)Electron-hole recombination rate decreases
D)Intrinsic carrier concentration rises

💡 Explanation

The band gap energy increases as temperature decreases, because the thermal vibrations that contribute to the band structure are reduced; therefore, the energy required for electrons to jump the gap increases, rather than alternatives like changes in electron mobility.

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