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Updated: Jan 9, 2026

Author Spotlight: Advancements in High-Performance Thermoelectric Thin Films Through Radio Frequency Magnetron Sputtering
Published on: May 17, 2024
2D/1D van der Waals material-based composites for wearable thermoelectric generators and sensors
Peng-An Zong1, Wenhui Li1, Mengran Chen1
1College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, China. pazong@njtech.edu.cn.
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Traditional heterostructures, bound by covalent bonds, are limited to materials with similar lattice structures. Utilizing van der Waals (vdW) forces to assemble low-dimensional materials allows for the integration of diverse materials, overcoming lattice-matching and processing constraints, and enabling the creation of versatile vdW-material-based composites. A transition metal dichalcogenide two-dimensional (2D) material, TaS2, has undergone extensive research in various fields but challenges are encountered in the enhancement of its thermoelectric performance. Herein, one-dimensional (1D) silver nanowires (Ag NWs) have been integrated with 2D TaS2via vdW forces, to form 1D/2D vdW-material-based composites. With further addition of polymer binder, PEDOT:PSS, a flexible 1D/2D film was developed. The power factor was enhanced by nearly a factor of 5 due to the bridging effect. The tensile strength was tripled due to the bricks and mortar structure. About 20 nW power was generated by a six-legged module at a temperature difference of 30 K. Demonstrations of the composite in tactile, respiration, and strain sensors showed significant promise for assisting the visually impaired with language support and enabling real-time measurements of respiratory rates and physiological conditions for health monitoring. This study underscores the vast potential of 1D/2D vdW composite films for applications in wearable nanogenerators, sensors, and beyond.
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