Which outcome abruptly occurs when electron energy exceeds a semiconductor's band gap?

💡 Explanation

Increased electron-hole recombination will occur because exceeding the band gap provides sufficient energy for electrons to jump to the conduction band; the subsequent recombination releases energy as photons. Therefore, increased light output, rather than breakdown or transparency, results.

• Which irreversible consequence arises when an endothermic chemical reaction is repeatedly driven within a closed oscillating chemical reactor?
• Which effect on light occurs because spacetime is warped by extreme mass?
• Which mechanism causes current flow between two closely spaced conductors separated by insulating layer in quantum tunnelling?
• Which mechanism allows buckypaper modified with palladium nanoparticles to detect hydrogen gas at room temperature?
• Which outcome occurs when rapid depressurization causes wet natural gas to cool?
• Which outcome increases when catalyst poisoning reduces active sites?