Recent studies have shown promising results regarding the power conversion efficiency, band-gap tunability, and interfacial charge carrier ability of organic lead halide perovskites. In light of these fundamental abilities, we fabricated a heterostructure: MAPbBr${}_3$ spin-coated on an FePd alloy layer, consisting of both magnetic and optical capabilities. The perovskite’s discrete coverage across the FePd underlayer was confirmed by atomic force microscope, as made up of separate disc-like nanostructures that stand at $\sim 400$ nm in height and a size width of up to $\sim 2$ µm. We studied the thermal endurance and the inter-facial diffusion stability between MAPbBr${}_3$ and FePd alloy by post-annealing it to temperatures ranging 100–170 ${}^{\circ }$C. The instable interfacial effects of perovskite/FePd was observed at 120 ${}^{\circ }$C, as indicated by the drastic reduction in magnetic coercivity of FePd and the photoluminescence of MAPbBr${}_3$. This interfacial diffusion behavior between perovskite and FePd advances as the post-annealing temperature reaches 170 ${}^{\circ }$C, supported by the enhanced noise to Kerr signal ratio.

最近的研究表明，有关有机卤化铅钙钛矿的功率转换效率，带隙可调性和界面电荷载流子能力方面的结果令人鼓舞。鉴于这些基本能力，我们制造了一种异质结构：MAPbBr${}_3$在具有磁性和光学功能的FePd合金层上旋涂。钙钛矿在FePd底层上的离散覆盖范围已通过原子力显微镜确认，其由独立的盘状纳米结构组成，位于$〜400$ 高度为nm，尺寸宽度最大为 $〜\mathrm{2个}$ 微米 我们研究了MAPbBr之间的耐热性和界面扩散稳定性${}_3$ 和FePd合金，通过将其后退火至100–170的温度范围 ${}^{\circ }$C.在120℃观察到钙钛矿/ FePd的不稳定界面效应 ${}^{\circ }$C，如FePd的磁性矫顽力的急剧降低和MAPbBr的光致发光所表明的那样${}_3$。退火后温度达到170时，钙钛矿和FePd之间的界面扩散行为逐渐发展。 ${}^{\circ }$C，由增强的噪声与Kerr信号之比支持。