VibraXX
Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter Arena
HomeCategoriesScienceQuestion
Question
Science

Which outcome abruptly occurs when electron energy exceeds a semiconductor's band gap?

A)Avalanche breakdown within internal electric fields
B)Increased phonon scattering inhibiting carrier mobility
C)Increased electron-hole recombination generating light
D)Exciton formation leading to optical transparency

💡 Explanation

Increased electron-hole recombination will occur because exceeding the band gap provides sufficient energy for electrons to jump to the conduction band; the subsequent recombination releases energy as photons. Therefore, increased light output, rather than breakdown or transparency, results.

🏆 Up to £1,000 monthly prize pool

Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.

⚡ Enter Arena

Related Questions

Browse Science