In this paper, Sm-doped 0.96(K_0.48Na_0.52)(Nb_0.95Sb_0.05)–0.04Bi_0.5(Na_0.82K_0.18)_0.5ZrO₃ (abbreviated as KNSN–0.04BNKZ) lead-free piezoelectric ceramics were prepared by conventional solid-state sintering method and the effects of Sm₂O₃ on the phase structure, microstructure, electrical and luminescent properties of KNSN–0.04BNKZ potteries were studied. Results revealed that a single solid solution phase with pseudo-cubic perovskite structure was formed between KNSN–0.04BNKZ and Sm₂O₃. Existence of weak dielectric/ferroelectric properties with a diffuse dielectric anomaly and slim P–E hysteresis loops of the Sm-doped KNSN–0.04BNKZ demonstrated the ferroelectric relaxor behavior of the KNNS–0.04BNKZ–xSm ceramics. Accordingly, the temperature stability and fatigue behavior of the modified ceramics were significantly improved. It was found that the KNSN–0.04BNKZ ceramics with 0.002 mol Sm addition exhibited nearly temperature independent properties and fatigue-free behavior. Moreover, Sm-modified KNSN–0.04BNKZ exhibits a bright photoluminescence with a strong orange emission under visible light irradiation. As a material with both electrical and luminescent properties, it has good application prospect in future optoelectronic components by integrating its luminescent and electrical properties.

中文翻译：

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0.96（K 0.48 Na 0.52）（Nb 0.95 Sb 0.05）–0.04Bi 0.5（Na 0.82 K 0.18）0.5 ZrO 3-x Sm无铅陶瓷的电性能和发光性能

本文采用常规方法制备了Sm掺杂0.96（K _0.48 Na _0.52）（Nb _0.95 Sb _0.05）–0.04Bi _0.5（Na _0.82 K _0.18）_0.5 ZrO ₃（缩写为KNSN–0.04BNKZ）无铅压电陶瓷。研究了固态烧结方法以及Sm ₂ O ₃对KNSN–0.04BNKZ陶瓷的相结构，微结构，电学和发光性能的影响。结果表明，在KNSN–0.04BNKZ与Sm ₂ O ₃之间形成了具有伪立方钙钛矿结构的单一固溶相。。Sm掺杂的KNSN–0.04BNKZ具有弱的介电/铁电特性，弥散的介电异常和细长的P – E磁滞回线，表明KNNS–0.04BNKZ– x的铁电弛豫特性Sm陶瓷。因此，改性陶瓷的温度稳定性和疲劳性能得到显着改善。发现添加0.002 mol Sm的KNSN–0.04BNKZ陶瓷表现出几乎与温度无关的特性和无疲劳性能。此外，Sm修饰的KNSN–0.04BNKZ在可见光照射下表现出明亮的光致发光和强烈的橙色发光。作为兼具电学和发光特性的材料，通过整合其发光和电学特性，在未来的光电组件中具有良好的应用前景。