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Piezoelectric output voltages for BTO-nanocomposite discs. Piezoelectric output increases with increasing BTO concentration in the composites: (A) measured voltage output under mechanical stimulation and (B) averaged voltage output as a function of BTO concentration. Data represent means. Errors bars are standard deviations. Statistics: One-way ANOVA: p < 0.0001. Post-hoc (Dunnett’s method): **** represents p < 0.0001 in comparison to control discs (0 wt%) (n≥3).
