Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich mechanism explains semiconductivity in amorphous silicon cells?
A)Defect band tailing lowers bandgap✓
B)Grain boundary scattering increases resistivity
C)Quantum tunneling generates free carriers
D)Phonon scattering limits carrier mobility
💡 Explanation
Defect band tailing enables semiconductivity because dangling bonds distort the long-range order and introduce localized energy states that narrow the effective band gap; therefore, carrier excitation occurs at lower energies rather than requiring the intrinsic bandgap energy.
🏆 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 outcome occurs when helium ash accumulates during D-T fusion?
- Which outcome increases when two entangled ions decohere?
- Which outcome arises from exceeding the saturation point for iron-56 in stellar fusion reactions?
- Which limitation determines maximum conversion rate in catalytic converters processing stoichiometric exhaust?
- Which outcome occurs when Plutonium-239 undergoes alpha decay?
- Which outcome results when gate oxide insulating layer dielectric experiences increased electron tunneling?
