Recently, the energy storage density of lead-free ceramics has been improved significantly, however, the single functional material can no longer satisfy the development trend of miniaturization and integration of electronic devices, thus developing multifunctional materials has become an urgent task. In this study, we fabricate a novel multifunctional ceramic with luminescence and energy storage properties, which can be denoted as (1-x)Bi_0.5Na_0.5TiO₃-xSr_0.7Sm_0.2TiO₃ ((1-x)BNT-xSST). The SST is doped into BNT can not only enhances the relaxor ferroelectric (RFE) phase by decreasing tolerance factor (t), but also introduces the luminescent properties due to the exist of Sm³⁺. Encouragingly, all ceramics exhibit strong red photoluminescence and long decay lifetime except BNT. Besides, the ceramic of 0.6BNT-0.4SST exhibits a high recoverable energy storage density (W_rec) of 3.52 J/cm³ and a large power density (P_D) of 220 MW/cm³ simultaneously, implying its large potential in optoelectronic devices application.

近来，无铅陶瓷的储能密度已有显着提高，但是，单一功能材料已不能满足电子设备的小型化和集成化的发展趋势，因此开发多功能材料已成为当务之急。在这项研究中，我们制造具有发光和能量存储特性的新型多功能陶瓷，可以表示为（1- x）Bi _0.5 Na _0.5 TiO ₃ - x Sr _0.7 Sm _0.2 TiO ₃（（1- x）BNT- xSST）。将SST掺入BNT中，不仅可以通过降低耐受因子（t）来增强弛豫铁电（RFE）相，而且由于Sm ³⁺的存在而引入了发光特性。令人鼓舞的是，除BNT外，所有陶瓷均表现出强红色光致发光和长衰变寿命。另外，0.6BNT-0.4SST陶瓷同时具有3.52 J / cm ³的高可回收能量存储密度（W _rec）和220 MW / cm ^3的大功率密度（P _D），这表明其在光电领域的潜力很大。设备应用程序。