Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich defect increases when a doped semiconductor cools rapidly?
A)Increased charge carrier recombination rate✓
B)Enhanced grain boundary electron tunneling
C)Decreased phonon mean free path
D)Amplified intrinsic free carrier generation
💡 Explanation
Fast cooling introduces lattice strain; because the dopants don't reach equilibrium positions quickly, they induce lattice defects. These defects act as recombination centers, therefore reducing charge carrier lifetime rather than causing electron tunneling because of doping gradients.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which consequence results when turbulent flow assumptions violate Bernoulli's equation in a high-speed pump?
- Which outcome occurs when a supersonic flow solver uses the Euler equations?
- Which mechanism causes standing waves during stimulated Raman scattering?
- Which consequence results when electron wave functions in a semiconductor device become unconfined?
- Which risk increases when microwave radiation excites rotational modes excessively in molecular food structures?
- Which deflection results for a photon approaching Jupiter?
