An all-fibrous triboelectric nanogenerator with enhanced outputs depended on the polystyrene charge storage layer

• DOI: 10.1016/j.nanoen.2021.106515
• Publication Date: 2021-09-16T15:56:56Z
• Authors: Haitao Wang; Hiroaki Sakamoto; Hanako. Asai; Jia-Han Zhang; Taichi Meboso; Yuji Uchiyama; Eiichi Kobayashi; Eiichiro Takamura; Shin-ichiro Suye
• Keywords: 01 natural sciences; 7. Clean energy; 0104 chemical sciences

Abstract Electrospun fibers based-triboelectric nanogenerators (EF-TENGs) are considered to have a positive application prospect on wearable energy harvesters. However，the poor comfortable breathability and low output performance under weak force as the common problems which are associated with the EF-TENGs are the principal issue that impede the practical applications. Here, an improved EF-TENG with breathable-antibacterial electrode and electrostatic induction enhancement layer is proposed by introducing silver nanowires (AgNWs) as electrodes and electrospun polystyrene (PS) nanofibers as charge storage layer, respectively. Based on this, a high-performance all-fibrous materials-based triboelectric nanogenerator (AF-TENG) is successfully fabricated and investigated. A high output voltage 200 V and current density 70 mA/m2 was achieved with the work area of 90 mm2 and AF-TENG was demonstrated could charge the economical capacitor with 1 μF to 2 V at a short time of 40 s under a continuous driven force and frequency at 1 Hz. Simultaneously, AF-TENG acts as a real-time force detective sensor integrated with normal fabrics also show excellent performance with a high signal-to-noise ratio. Based on these characteristics of AF-TENG verified above, this work is thought to inspire an effective ponder to the evolution of wearable energy harvester.