Flexible electronics/spintronics attracts researchers’ attention for their application potential abroad in wearable devices, healthcare, and other areas. Those devices’ performance (speed, energy consumption) is highly dependent on manipulating information bits (spin-orientation in flexible spintronics). In this work, we established an organic photovoltaic (OPV)/ ZnO/Pt/Co/Pt heterostructure on flexible PET substrates with perpendicular magnetic anisotropy (PMA). Under sunlight illumination, the photo-electrons generated from the OPV layer transfer into the PMA heterostructure, then they reduce the PMA strength by enhancing the interfacial Rashba field accordingly. The coercive field (H_c) reduces from 800 Oe to 500 Oe at its maximum, and the magnetization can be switched up and down reversibly. The stability of sunlight control of magnetization reversal under various bending conditions is also tested for flexible spintronic applications. Lastly, the voltage output of sunlight-driven PMA is achieved in our prototype device, exhibiting an excellent angular dependence and opening a door towards solar-driven flexible spintronics with much lower energy consumption.

柔性电子/自旋电子学因其在可穿戴设备、医疗保健等领域的应用潜力而受到国外研究人员的关注。这些设备的性能（速度、能耗）高度依赖于信息位的操作（灵活自旋电子学中的自旋方向）。在这项工作中，我们在具有垂直磁各向异性（PMA）的柔性PET基板上建立了有机光伏（OPV）/ZnO/Pt/Co/Pt异质结构。在阳光照射下，OPV层产生的光电子转移到PMA异质结构中，然后通过相应增强界面Rashba场来降低PMA强度。矫顽场（H _c）从800 Oe最大降低到500 Oe，并且磁化强度可以可逆地上下切换。还针对灵活的自旋电子应用测试了各种弯曲条件下磁化反转的阳光控制的稳定性。最后，在我们的原型设备中实现了阳光驱动 PMA 的电压输出，表现出出色的角度依赖性，并为能耗低得多的太阳能驱动柔性自旋电子学打开了大门。