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← ScienceWhich outcome occurs within a silicon semiconductor when increasing temperature significantly broadens electron energy states?
A)Decreased band gap energy level✓
B)Increased rate of nuclear fusion
C)Lowered efficiency thermoelectric generation
D)Enhanced superconductivity transition temperature
💡 Explanation
A decreased band gap occurs because increased temperature causes increased thermal vibration that broadens electron energy states, reducing the energy required for electrons to jump across using thermal excitation. This lowers the energy needed, therefore decreasing the energy gap needed rather than increasing it under changed conditions, or other effects.
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