Multifunctional Sensitive Positive Friction Layer of TPU/MXene/STO Composited Film for Triboelectric Nanogenerator

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: March 26, 2025

Triboelectric nanogenerators (TENGs) are ideal candidates for flexible wearable electronics due to their simple structure, high output voltage, and sensitivity. However, the of TENG still needs further improvement. This study fabricated a positive triboelectric layer with fillers improve equipped dense, irregular surface structure by using electrospinning. The effect composite filler consisting conductive MXene nanosheets ferroelectric strontium titanate nanoparticles was investigated adjusting ratio. Compared pure thermoplastic polyurethane (TPU), voltage current TMS-based (TPU/MXene/STO) increased 7 34 times. Furthermore, has been successfully applied in sensing. It can detect curvature different object grips various breathing conditions, making it promising intelligent sensing health monitoring applications. developed low-cost, high-performance, highly sensitive TENG, which shows significant potential smart devices.

Language: Английский

Interfacial Charge Transfer Mechanism and Output Characteristics of Identical-Material Triboelectric Nanogenerators

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(10), P. 708 - 708

Published: May 8, 2025

When testing the output of piezoelectric devices under different pressures, friction between pressure platform and device causes a large amount frictional electrical signals to be mixed in signal, seriously affecting measurement accuracy signal. The current solution is encapsulate contact interface with identical materials suppress triboelectric interference. However, this work has shown that even when separation implemented at same media, can still generated. heterogeneous potential distribution material been discovered for first time through distribution, proving charge transfer exists materials. Atomic force microscopy (AFM) was used analyze microstructure interface, it found existence surface tip structure would enhance electron loss. Based on this, new model surface–tip cloud interaction proposed work. In addition, by comparing voltage characteristics nanogenerators (TENGs) seven polymer (e.g., polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), polytetrafluoroethylene (PTFE), polyoxymethylene (POM), polyimide (PI), terephthalate (PET)), open circuit PP only 0.06 V they each other, which 2–3 orders magnitude lower than other are applied package devices, precision characterization improved significantly, experimental basis theory system provided.

Language: Английский

Liquid metal modified all-nanofiber triboelectric nanogenerator for energy harvesting and multi-functional self-powered sensing

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 164372 - 164372

Published: June 1, 2025

Language: Английский