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← ScienceWhich mechanism causes increased piezoelectric voltage in perovskite crystals?
A)Increased ferroelectric domain alignment✓
B)Reduced grain boundary scattering
C)Enhanced electron-phonon coupling
D)Suppressed thermal conductivity losses
💡 Explanation
Increased piezoelectric voltage results from increased ferroelectric domain alignment, because stronger alignment results in enhanced polarization under stress; therefore voltage output increases with the applied force, rather than the applied loss mechanisms.
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