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← ScienceWhich outcome occurs when mismatch of conduction band wave functions at a semiconductor heterojunction interface?
A)Increased electron-hole recombination rate✓
B)Enhanced piezoelectric polarization effects
C)Suppressed thermal carrier generation
D)Formation of standing phonon waves
💡 Explanation
Increased electron-hole recombination occurs due to non-conservation momentum caused by wave function vector mismatch. Auger recombination therefore occurs on larger scale rather than enhanced piezoelectricity, standing phonons waves or reduced carrier generations , because interface state act defects
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