Piezoceramics with both high piezoelectric properties and broad temperature usage range are highly in demand for sensor and actuator applications. Unfortunately, the trade-off relationship between two properties poses a significant challenge that remains unresolved. Herein, through combined phase boundary engineering and process engineering, we report the simultaneous achievements of substantially enhanced piezoelectric coefficient d (from 784 pC/N to 855 pC/N) and piezoelectric strain d* (from 620 pm/V to 860 pm/V), and ultrahigh temperature stability (i.e., d and d* change less than 7.3% and 4.6% over 25-175 °C, respectively) in PbBa[ZrTi(NbSb)]O (x = 0.4) ceramics, superior to those of other typical piezoceramics. The enhanced piezoelectricity and excellent temperature stability are attributed to three synergistic effects, namely, morphotropic phase boundary concomitant with nano-domains, reduced pores, and inhibited oxygen vacancies. Therefore, our proposed strategy provides a new paradigm to boost both piezoelectricity and its temperature stability and is beneficial to both academia and industry.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11814249 | PMC |
| http://dx.doi.org/10.1038/s41467-025-56798-7 | DOI Listing |
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