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

Which consequence results when excessive arsenic doping modifies silicon crystal lattice band structure?

A)Increased free carrier concentration
B)Increased electron-phonon scattering
C)Enhanced piezoelectric coefficient
D)Elevated superconducting transition temperature

💡 Explanation

Increased arsenic doping introduces shallow donor levels near the conduction band, so the band gap decreases due to increased dopant impurities. This shifts the *Fermi level*, therefore increased free carrier concentration occurs rather than other electronic effects under normal temperature ranges.

🏆 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