论文标题
钙钛矿底物的回收
Recycling of Perovskite Substrate
论文作者
论文摘要
Sr $ _3 $ al $ _2 $ o $ _6 $的水溶性牺牲层的使用极大地增强了有关独立式功能性氧化物薄膜的研究，尤其是由于其最终产生高质量的上皮perovskite薄膜的能力。但是，昂贵的单晶底物，例如Srtio $ _3 $，通常在获得独立的薄膜后被丢弃。在这里，我们证明了Srtio $ _3 $底物可以回收以制造LA $ _ {0.7} $ SR $ _ {0.3} $ MNO $ _3 $胶片具有几乎相同的结构和电气性能。在获得独立的薄膜后，可以通过80 \ c c热水浸泡和冲洗处理来清除SRTIO $ _3 $的残留物。因此，srtio $ _3 $的表面恢复为原始的零星结构。
The use of water-soluble sacrificial layer of Sr$_3$Al$_2$O$_6$ has tremendously boosted the research on freestanding functional oxide thin films, especially thanks to its ultimate capability to produce high-quality epitaxial perovskite thin films. However, the costly single-crystalline substrates, e.g. SrTiO$_3$, were generally discarded after obtaining the freestanding thin films. Here, we demonstrate that the SrTiO$_3$ substrates can be recycled to fabricate La$_{0.7}$Sr$_{0.3}$MnO$_3$ films with nearly identical structural and electrical properties. After attaining freestanding thin films, the residues on SrTiO$_3$ can be removed by 80 \degree C hot water soaking and rinsing treatments. Consequently, the surface of SrTiO$_3$ reverted to its original step-and-terrace structure.
