Antiferroelectric (AFE) Pb 0.96 La 0.04 Zr 0.90 Ti 0.10 O 3 (PLZT) and AgNbO 3 (AN) ceramics were fabricated codoped with 1 mol% Er and various contents of Yb 3+ ions. The ceramics exhibit good energy storage performances and electric‐field‐controlled photoluminescence ( E ‐PL) intensity modulations, both of which are attributed to the reversible AFE‐ferroelectric phase transition that accompanies a structural evolution. Accordingly, a noncontact energy charge/discharge monitor is proposed based on the E ‐PL effect, which is convenient and safe for the high‐energy density capacitors. Besides, the PLZT and AN ceramics exhibit opposite E ‐PL behaviors that are caused due to different crystal space group transitions.
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Yang et al. (2024) studied this question.
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