Rare earth (RE) element-doped two-dimensional (2D) transition metal dichalcogenides (TMDCs) with applications in luminescence and magnetics have received considerable attention in recent years. To date, the effect of RE element doping on the electronic properties of monolayer 2D-TMDCs remains unanswered due to challenges including the difficulty of achieving valid monolayer doping and introducing RE elements with distinct valence and atomic configurations. Herein, we report a unique strategy to grow the Sm-doped monolayer MoS₂ film by using an atmospheric pressure chemical vapor deposition method with the substrate face down on top of the growth source. A stable monolayer triangular Sm-doped MoS₂ was achieved. The threshold voltage of an Sm-doped MoS₂-based field effect transistor (FET) moved from −12 to 0 V due to the p-type character impurity state introduced by Sm ions in monolayer MoS₂. Additionally, the electrical performance of the monolayer MoS₂-based FET was improved by RE element Sm doping, including a 500% increase of the on/off current ratio and a 40% increase of the FET’s mobility. The electronic property enhancement resulted from Sm doping MoS₂, which led internal lattice strain and changes in Fermi energy levels. These findings provide a general approach to synthesize RE element-doped monolayer 2D-TMDCs and to enrich their applications in electrical devices.

Driven by the rapid evolution of flexible electronics, rehabilitation healthcare is shifting toward devices that seamlessly interface with human body. Yet, existing solutions often simply layer flexible sensor units over rigid components, making it difficult to combine high elasticity, mechanical robustness, and true imperceptibility. Here, we are pioneering a super‐tough (∼54.7 MPa) and highly stretchable (>400% strain) triboelectric webbing (T‐webbing) that overcomes this long‐standing trade‐off through the synergistic integration of an embedded textured architecture and functional elastic yarns. The T‐webbing supports mass customization, exhibits outstanding electrical durability (>100 000 cycles), and enables reliable self‐powered sensing capability with tunable mechanical properties for diverse rehabilitation tasks. In a proof‐of‐concept demonstration, the T‐webbing is seamlessly integrated into a machine‐learning‐enabled lower‐limb rehabilitation platform, achieving a motion recognition accuracy of 97.9% while enabling seamless one‐click data sharing, intuitive human–machine interaction, and real‐time remote guidance. By bridging high mechanical resilience with imperceptible wearability, our study offers a brand‐new solution for data‐driven, high‐compliance, home‐based rehabilitation within the Internet‐of‐Things ecosystem—addressing a pressing clinical need for scalable, patient‐friendly solutions.

There are numerous works that report wirelessly controlling the locomotion of soft robots through a single actuation method of light or magnetism. However, coupling multiple driving modes to improve the mobility of robots is still in its infancy. Here, we present a soft multi-legged millirobot that can move, climb a slope, swim and detect a signal by near-infrared irradiation (NIR) light or magnetic field dual actuation. Due to the design of the feet structure, our soft millirobot incorporates the advantages of a single actuation mode of light or magnetism. Furthermore, it can execute a compulsory exercise to sense a signal and analyze the ambience fluctuation in a narrow place. This work provides a novel alternative for soft robots to achieve multimode actuation and signal sensing.