基于激光诱导石墨烯电极的柔性纸基摩擦纳米发电机

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中图分类号:TM910 文献标志码:A 文章编号:1671-024X(2025)03-0061-11

Flexible paper-based triboelectric nanogenerators basedon laser-induced graphene electrodes

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Abstract:Torelieve the pressurecausedbythescarcity traditional energysources simultaneouslyreducetheenvironmental harm during the energy development consumption processes,laser direct-writing technology was adopted.Kraft cardboard was transiently ablated to prepare flexible laser-induced graphene (LIG)electrodes in one step.Then,Eclex silicone rubber was spin-coated on the LIG flexible electrodes to form a negative triboelectric layer,thus preparing a single-electrode flexible paper-based triboelectric nanogenerator (CP-TENG). The influence laws laser scanning parameters such as scanning rate laser power,as well as the thickness the negative triboelectric layer,on the triboelectric nanogeneration performance were analyzed, theoptimal process parameters were determined. To further enhance the output performance,an origami-structure design was used to prepare a multi-unit structured paper-based triboelectric nanogenerator.The results showed that when thelaser scanning rate was 15cm/s,the scanning power was 3.6 W, the thickness the negative triboelectric layer was O.9 mm,the prepared single-electrode CP-TENG achieved high-performance output.Under the conditions aload frequency 1O Hz aload force 1ON,the peak-to-peak open-circuit voltage CP-TENG could reach 61.8 V. When the load force was increased to 16 N,the peak-to-peak open-circuit voltage could reach up to 97.1 V.When the load resistance was 18MΩ , the output power was 47.8 μ W. The singleelectrode CP-TENG could withst various bending folding deformations with stable performance.After 1 000 folds,the sheet resistance LIG only slightly increased from the initial 16 Ω/sq to 18 Ω/sq ,still main taining godoutput performane.Theoutput performancethe multi-unit tructured CP-TENG was furtherimproved.When the numberfrictionunits increasedfrom1to6,thepeak-to-peakopen-circuit voltage increasedfrom41Vto188V.Compared with hebraidedstructure,the multi-unit CP-TENGwithameshing structurehadbetteroutputperformance,itsopen-circuit voltagecouldreach389V.Byataching thepaper-basedtriboelectricnanogenerator tohumanjointparts,self-poweredmonitoring human joint postures could be achieved.

Keywords:paper-basedtriboelectricnanogenerator;laser-inducedgraphene;multi-unitorgamistructure;humanjointmonitoring

随着物联网、大数据、人工智能等新技术的产生,传感器的应用也变得越来越广泛[1-2],但都需要依赖电池长期供电,由此造成的资源浪费和环境污染非常严重[3-4]。(剩余16040字)

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