Lead-free compounds with formula Ba_0.975Ln_0.017(Ti_0.90Zr_0.05Sn_0.05)O₃ (BLnZ5TS) and Ba_0.975Ln_0.017(Ti_0.75Zr_0.20Sn_0.05)O₃ (BLnZ20TS) [Ln = Eu, Ho] were synthesized using the solid-state reaction technique. Scanning electron micrographs of ceramics showed a decrease in the average grain size as the Ln³⁺ radii increases. The structural study allowed the identification of tetragonal and cubic symmetries at room temperature for BLnZ5TS and BLnZ20TS, respectively. Dielectric measurements were carried out as a function of temperature and frequency. The results revealed that BLnZ5TS exhibited normal ferroelectric behavior with diffuse phase transition, whereas BLnZ20TS displayed relaxor ferroelectric properties. The diffuse phase transition parameters were determined from the modified Curie–Weiss law, while the relaxor behavior in BLnZ20TS was highlighted by a good fit to the Vogel–Fülcher relationship. The photoluminescence of the prepared specimens was investigated and the results showed that these compositions bear interest for green and red emission.

合成了化学式为 Ba _0.975 Ln _0.017 (Ti _0.90 Zr _0.05 Sn _0.05 )O ₃ (BLnZ5TS) 和 Ba _0.975 Ln _0.017 (Ti _0.75 Zr _0.20 Sn _0.05 )O _{3 的}无铅化合物，[EBLn]20TS ] O ₃ (E)20TS使用固态反应技术。陶瓷的扫描电子显微照片显示平均晶粒尺寸随着 Ln ³⁺半径增加。结构研究允许分别在室温下鉴定 BLnZ5TS 和 BLnZ20TS 的四方对称和立方对称。作为温度和频率的函数进行介电测量。结果表明，BLnZ5TS 表现出具有扩散相变的正常铁电行为，而 BLnZ20TS 表现出弛豫铁电特性。扩散相变参数由修正的居里-魏斯定律确定，而 BLnZ20TS 中的弛豫行为通过与 Vogel-Fülcher 关系的良好拟合而突出显示。研究了制备的样品的光致发光，结果表明这些组合物对绿色和红色发射感兴趣。