With rational design, emerging artificial intelligent systems enable to possess capabilities far beyond human beings. Here, we report a novel magnetically controllable and flexible phototransistor using a tandem structure composed of an organic solar cell (OSC) of ITO/ZnO/P3HT:PC₆₁BM/MoO₃/Ag and a magnetic micropyramid array film of FeNi/PDMS composite covered with silver nanowires (AgNWs) (FeNi/PDMS/AgNWs) separated by an air gap. The FeNi/PDMS/AgNWs micropyramid structure takes the advantage of the Ag electrode of the bottom OSC forming a magnetoelectronic device. This novel seamless integrated device can interact with external stimuli, including pressure, light and magnetic field, forming an intriguing type of transistor. The output current of the developed transistor can be modulated by both optical excitation and magnetic field simultaneously, making it possess new functionalities. Additionally, the phototransistor carries several outstanding features, including fast photo/magnetic-response time, non-contact magnetic/optical control, and mechanical flexibility. These promising properties diversify the applications of the proposed phototransistor for the implementation in wearable electronics, touchless technology, and optical communication.

通过合理的设计，新兴的人工智能系统可以拥有远远超出人类的能力。在这里，我们报告了一种新型的可磁控和柔性光电晶体管，该晶体管使用由ITO / ZnO / P3HT：PC ₆₁ BM / MoO ₃的有机太阳能电池（OSC）组成的串联结构/ Ag和FeNi / PDMS复合材料的磁性微金字塔阵列膜，覆盖有通过气隙隔开的银纳米线（AgNWs）（FeNi / PDMS / AgNWs）。FeNi / PDMS / AgNWs微金字塔结构利用了底部OSC的Ag电极形成磁电子器件的优势。这种新颖的无缝集成器件可以与包括压力，光和磁场在内的外部刺激相互作用，从而形成一种有趣的晶体管。所开发的晶体管的输出电流可以同时通过光激励和磁场进行调制，使其具有新的功能。此外，光电晶体管具有几个出色的功能，包括快速的光/磁响应时间，非接触式磁/光控制和机械灵活性。