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

Which outcome occurs when a semiconductor's band gap narrows under intense illumination?

A)Reduced electron-hole recombination lifetime
B)Increased electrical conductivity ensues
C)Enhanced optical absorption decreases heavily
D)Phonon scattering rate stabilizes slowly

💡 Explanation

A narrowed band gap under strong light induces higher concentration of free carriers; Band Gap Narrowing alters the electronic structure promoting intrinsic conductivity, because the excitation overcomes prior barriers. Therefore conductivity increases rather than decreases because of other band effects.

🏆 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