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← ScienceWhich outcome occurs when applying pressure to piezoelectric nanocrystals?
A)Charge displacement creates electric polarization✓
B)Lattice defects increase electron mobility
C)Phonon vibrations generate heat gradients
D)Decreased band gap allows conduction
💡 Explanation
Applying pressure causes the piezoelectric effect; this mechanical stress deforms the crystal lattice. Because charge displacement creates an electric dipole moment across the crystal, therefore electrical polarization occurs, rather than increased electron mobility due to defects.
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