The contemporary digital revolution, which demands for miniaturized electronics, has prompted the search for molecule-based nanomaterials that handle some of the computational logic functions—which relates the concept of zeros (0) and ones (1) in binary code—reached by mainstream silicon-based semiconductor technology. Herein, the feasibility of emerging 2D transition metal carbide (MXene) derivatives to write, erase and readout bistable molecular switches has been elucidated. As a first demonstration of applicability, 2D-Ti₃C₂T_x MXene has been covalently functionalized with an optically active molecule as azobenzene (AZO), in which the photo-driven inputs of the AZO isomerization (E-AZO@Ti₃C₂T_x ↔ Z-AZO@Ti₃C₂T_x) resulted in two distinguished electrical states when it was immobilized in an emerging 3D-printed transducer. Thus, this work provides the basis towards the yet undisclosed concept of “Responsive MXetronics” by molecularly engineering smart MXenes to perform logic (opto)electronic tasks.

中文翻译：

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通过分子工程电读取 2D-Ti3C2Tx MXene 上的光驱动分子开关：迈向响应式 MXetronics

当代数字革命需要小型化电子产品，这促使人们寻找基于分子的纳米材料来处理一些计算逻辑功能——这与二进制代码中的零 (0) 和一 (1) 的概念相关——主流已达到硅基半导体技术。本文阐明了新兴的二维过渡金属碳化物 (MXene) 衍生物在写入、擦除和读出双稳态分子开关方面的可行性。作为适用性的首次证明，2D-Ti ₃ C ₂ T _x MXene 已与光学活性分子如偶氮苯 (AZO) 共价官能化，其中偶氮异构化的光驱动输入 ( E -AZO@Ti ₃ C ₂T _x ↔ Z -AZO@Ti ₃ C ₂ T _x ) 固定在新兴的 3D 打印换能器中时会产生两种不同的电状态。因此，这项工作通过分子工程智能 MXenes 来执行逻辑（光）电子任务，为尚未公开的“响应式 MXetronics”概念提供了基础。