Xue Yongmei, Ma Li, Han Zhuokun, Liu Jianwei, Wang Zejun, Liu Pengcheng, Zhang Yu, Dong Huijuan
Department of Physics, Changzhi University, Changzhi 046011, China.
School of Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China.
Nanomaterials (Basel). 2024 Jul 12;14(14):1186. doi: 10.3390/nano14141186.
NaNbO(NN)-based lead-free materials are attracting widespread attention due to their environment-friendly and complex phase transitions, which can satisfy the miniaturization and integration for future electronic components. However, NN materials usually have large remanent polarization and obvious hysteresis, which are not conducive to energy storage. In this work, we investigated the effect of introducing CaTiO((1-)NaNbO-CaTiO) on the physical properties of NN. The results indicated that as increased, the surface topography, oxygen vacancy and dielectric loss of the thin films were significantly improved when optimal value was achieved at = 0.1. Moreover, the 0.9NN-0.1CT thin film shows reversible polarization domain structures and well-established piezoresponse hysteresis loops. These results indicate that our thin films have potential application in future advanced pulsed power electronics.
基于NaNbO(NN)的无铅材料因其环境友好和复杂的相变而受到广泛关注，这可以满足未来电子元件的小型化和集成化。然而，NN材料通常具有较大的剩余极化和明显的滞后现象，这不利于能量存储。在这项工作中，我们研究了引入CaTiO((1-)NaNbO-CaTiO)对NN物理性能的影响。结果表明，随着增加，当在 = 0.1时达到最佳值，薄膜的表面形貌、氧空位和介电损耗得到显著改善。此外，0.9NN-0.1CT薄膜显示出可逆的极化畴结构和良好的压电响应滞后回线。这些结果表明，我们的薄膜在未来先进的脉冲功率电子学中具有潜在的应用。
