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

Which mechanism causes increased conductivity when light strikes amorphous silicon?

A)Photogeneration of electron-hole pairs
B)Increased phonon scattering at defects
C)Dopant atom photo-ionization
D)Light stimulated crystal recrystallization

💡 Explanation

The increased conductivity arises because photogeneration of electron-hole pairs increases the number of charge carriers within the material's band structure. Therefore, more current flows, rather than alternatives involving lattice defects or doping which have different preconditions.

🏆 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