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← ScienceWhich outcome occurs when a high electric field is applied to a semiconductor with shallow dopant orbitals?
A)Poole-Frenkel emission occurs eventually✓
B)Increased Bloch oscillations are generated
C)Increased Raman scattering efficiency
D)Auger recombination rate accelerates
💡 Explanation
Poole-Frenkel emission occurs because the applied field lowers the potential barrier around the dopant, enhancing thermal excitation; this process is fundamentally field-assisted ionization rather than increased oscillations because Bloch oscillations require a periodic potential.
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