期刊
ACS APPLIED ENERGY MATERIALS
卷 5, 期 12, 页码 15881-15889出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.2c03406
关键词
triboelectric nanogenerator (TENG); polystyrene (PS); energy harvesting; self-powered sensors; motion-monitoring
资金
- Science and Engineering Research Board, Department of Science and Technology, Government of India
- [SRG/2020/000228]
Polystyrene-based triboelectric nanogenerators were developed and showed high voltage and power output. They were successfully applied in electronic devices and human motion monitoring.
Polystyrene (PS)-based triboelectric nanogenerators (PS-TENGs) with PS as the primary friction layer have been reported. PS-TENGs were developed by a simple drop-cast method and arranged in vertical contact-separation mode with aluminum as the other triboelectric layer. The PS-TENG (area: similar to 15 cm2) prepared with 40 mg/mL PS solution generated an open-circuit voltage of similar to 140 V, short-circuit current of similar to 6 mu A, and instantaneous power of similar to 120 mu W (power density of similar to 80 mW/m2) when subjected to a force of similar to 12 N. The PS-TENG also powered 120 green light-emitting diodes and low-power electronic systems like a calculator and digital clock. The PS-TENG was further explored as a self-powered human motion monitoring device where it effectively detected trivial human motions like hand tapping, walking, running, jumping, and various joint movements. In addition, small-scale motions like that of fingers and coughing impulses and throat-clearing vibrations in the throat, nasal breath, and mouth air blows were also precisely captured by the PS-TENG. These results signified huge capabilities of PS as a triboelectric material, which remains widely unexplored despite its suitable position in the triboelectric series.
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