An all-fibrous large-area (20 × 50 cm²) tailorable triboelectric nanogenerator (LT-TENG) is prepared using a one-step solution blow spinning technology, which has the advantages of easy operation, scale-up in the area, and high production efficiency. The prepared LT-TENG is composed of polyvinylidene fluoride (PVDF)/MXene (Ti₃C₂T_x) nanofibers (NFs) and conductive textile. Benefiting from the fibrous materials and large-area properties, the LT-TENG possesses the merits of good tailorability, breathability, hydrophobicity, and washability. When optimized by mixing the MXene into PVDF NFs, the LT-TENG has a preferable output and sensing property, with a detection range over 16 kPa and a relatively high sensitivity of 12.33 V KPa⁻¹. At maximum applied pressure, the voltage, current, and charge are 108 V, 38 µA, and 35 nC, respectively. This LT-TENG can serve as a biomechanical energy harvester when used as wearable devices with an output power density of 12.6 mW m⁻² at an external load resistance of 500 MΩ, and it also has the ability of self-powered tactile sensing for pressure mapping and slide sensing. Thus, this LT-TENG exhibits great potential prospects in wearable devices, intelligent robots, and human–machine interaction.

中文翻译：

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基于溶液吹旋技术的全纤维大面积可定制摩擦纳米发电机用于能量收集和自供电传感

采用一步法溶液吹纺技术制备全纤维大面积（20×50 cm ² ）可剪裁摩擦纳米发电机（LT-TENG），具有操作简单、可在面积上放大、生产效率高。制备的 LT-TENG 由聚偏二氟乙烯 (PVDF)/MXene (Ti ₃ C ₂ T _x ) 纳米纤维 (NFs) 和导电织物组成。受益于纤维材料和大面积特性，LT-TENG具有良好的剪裁性、透气性、疏水性和耐洗性等优点。当通过将 MXene 混合到 PVDF NFs 中进行优化时，LT-TENG 具有更好的输出和传感特性，检测范围超过 16 kPa，灵敏度相对较高，为 12.33 V KPa^-1。在最大施加压力下，电压、电流和电荷分别为 108 V、38 µA 和 35 nC。该 LT-TENG 可作为生物力学能量采集器，作为可穿戴设备使用，在 500 MΩ 的外部负载电阻下输出功率密度为 12.6 mW m ^-2 ，并且还具有自供电触觉压力感应能力映射和滑动传感。因此，该 LT-TENG 在可穿戴设备、智能机器人和人机交互方面展现出巨大的潜在前景。