PVDF/AgNP/MXene composites-based near-field electrospun fiber with enhanced piezoelectric performance for self-powered wearable sensors

被引:27
作者
Pan, Cheng-Tang [1 ,2 ]
Dutt, Karishma [1 ]
Kumar, Amit [3 ]
Kumar, Rahul [1 ]
Chuang, Cheng-Hsin [3 ]
Lo, Yi-Ting [4 ]
Wen, Zhi-Hong [5 ]
Wang, Chien-Shu [4 ]
Kuo, Shiao-Wei [2 ,6 ,7 ]
机构
[1] Natl Sun Yat Sen Univ, Dept Mech & Electromech Engn, Kaohsiung 80424, Taiwan
[2] Natl Sun Yat Sen Univ, Coll Semicond & Adv Technol Res, Inst Adv Semicond Packaging & Testing, Kaohsiung 80424, Taiwan
[3] Natl Sun Yat Sen Univ, Inst Med Sci & Technol, Kaohsiung 80424, Taiwan
[4] Kaohsiung Armed Forces Gen Hosp, Dept Psychiat, Kaohsiung 80284, Taiwan
[5] Natl Sun Yat Sen Univ, Dept Marine Biotechnol & Resources, Kaohsiung 80424, Taiwan
[6] Natl Sun Yat Sen Univ, Ctr Funct Polymers & Supramol Mat, Dept Mat & Optoelect Sci, Kaohsiung 80424, Taiwan
[7] Kaohsiung Med Univ, Dept Med & Appl Chem, Kaohsiung 807, Taiwan
关键词
Near-field electrospinning; Piezoelectric fibers; Sensing elements; Conductive fillers; Composite materials; DIELECTRIC-PROPERTIES; STRAIN SENSORS; PVDF; NETWORK; PHASE; NANOFIBERS; PRESSURE; GRAPHENE; NANOCOMPOSITE; NANOGENERATOR;
D O I
10.18063/ijb.v9i1.647
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
MXenes, as highly electronegative and conductive two-dimensional nanomaterials, are extensively studied for their use in sensors and flexible electronics. In this study, near-field electrospinning was used to prepare a new poly(vinylidene difluoride) (PVDF)/Ag nanoparticle (AgNP)/MXene composite nanofiber film as a self-powered flexible human motion-sensing device. The composite film displayed highly piezoelectric properties with the presence of MXene. Scanning electron microscopy, X-ray diffraction, and Fourier transform infrared spectroscopy revealed that the intercalated MXene in the composite nanofibers was evenly spread out, which not only prevented the aggregation of MXene but also enabled the composite materials to form self-reduced AgNPs. The prepared PVDF/AgNP/MXene fibers displayed exceptional stability and excellent output performance, enabling their use for energy harvesting and powering light-emitting diodes. The doping of MXene/AgNPs increased the electrical conductivity of the PVDF material, improved its piezoelectric properties, and enhanced the piezoelectric constant of PVDF piezoelectric fibers, thereby allowing the production of flexible, sustainable, wearable, and self-powered electrical devices.
引用
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页数:18
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