Which mechanism causes photocurrent generation when electrons are excited within a semiconductor photodiode?

💡 Explanation

Drift current causes photocurrent because the electric field in the depletion region sweeps electron-hole pairs apart, thus they contribute to the net current. Electron-hole separation increases current rather than recombination or diffusion, which counteract drift.

• Which outcome dominates when thin film thickness variation approaches wavelength?
• Which effect occurs when a strong external magnetic field is applied perpendicular to a Hall effect sensor?
• Which outcome arises when internal pressure rises within a pump experiencing cavitation?
• Which outcome occurs when a cryogenic liquid rapidly transitions phase?
• Which outcome results when hydrogen sulfide production exceeds scrubber capacity?
• Which outcome increases when an electron reaches an imperfect crystal lattice?