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← ScienceWhich outcome occurs when resonant tunneling diode (RTD) biases approach valley voltage?
A)Negative differential resistance peak diminishes.✓
B)Increased quantum dot trapping efficiency.
C)Enhanced thermionic emission coefficient.
D)Enhanced LO phonon scattering dominance.
💡 Explanation
Reduced current occurs because the quantum well's quantized energy level misaligns with the emitter's Fermi level; this is resonant tunneling. A diminished negative differential resistance is observed rather than other effects because electrons are unable to tunnel, therefore current reduces.
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