Abstract
Self-powered nanogenerators composed of poly(vinylidene fluoride) (PVDF) have received much attention. Solution blow spinning (SBS) is a neoteric process for preparing nanofiber mats with high efficiency and safely, and SBS is a mature fiber-forming technology that offers many advantages over conventional electrospinning methods. Herein, we adopted the SBS method to prepare independent PVDF nanofiber membranes (NFMs), and successfully employed them as nanogenerators. Finally, we tested the change in the output current caused by mechanical compression and stretching, and studied its durability and robustness by charging the capacitor, which can drive tiny electronic devices. The results show that the PVDF nanogenerators by using this SBS equipment can not only be used in wearable electronic textiles, but are also suitable for potential applications in micro-energy harvesting equipment.
Highlights
Self-powered systems are systems that collect energy to operate on their own, and can run continuously without an external power supply; they are widely used in data transmission, detection, data processing and sensing [1,2,3,4]
The crystal structure of the Polyvinylidene fluoride (PVDF) nanofiber membrane was analyzed on a diffractometer (Rigaku, SmartLab, Tokyo, Japan) and Raman spectroscopy were collected by the Laser Raman Spectroscopy (Labram HR 800, Jobin-Yvon Horiba, Kyoto, Japan)
The system is composed of three layers, two of the layers are PVA/PEDOT:PSS CNCFM prepared by electrospinning and PVDF nanofiber membrane obtained by Solution blow spinning (SBS)
Summary
Self-powered systems are systems that collect energy to operate on their own, and can run continuously without an external power supply; they are widely used in data transmission, detection, data processing and sensing [1,2,3,4]. Polyvinylidene fluoride (PVDF) has many excellent properties, including ferroelectricity, piezoelectricity, pyroelectricity and dielectric properties [18]. Among the three polarization phases, the β phase has an all-trans (TTTT) zigzag chain conformation, in which the dipole is perpendicular to the chain axis, so it exhibits the largest dipole moment, resulting in relatively high spontaneous polarization, the β phase exhibits a strong piezoelectric response. It shows piezoelectricity, pyroelectricity and ferroelectricity, giving PVDF the Nanomaterials 2019, 9, 1090; doi:10.3390/nano9081090 www.mdpi.com/journal/nanomaterials. It shows piezoelectricity, pyroelectricity and ferroelectricity, giving. Materials poly(vinylidene fluoride) powder (Mw~550,000, Shanghai, China), Polyvinyl Alcohol (PVA, M(MPWEW~D~6pO67o7,Tl0,y00:P(00v0S,i,SnA)yAdllailidadsedpdndeinerins, fiS,louhnaoSnrlhiigqdahunea)igdi,hpCa(o1ihw,.0ind5aCew)rhati(n%nMda)wdpi~os5aply5ne(0dr3,s,04i0o-0epnt,ohilSnyyhl(wea3nn,a4egt-deheriato,hixS,yyhClteahhnniioegndphaiha)o,eix,nPyCeot)hhl:ypiinovopailny)hy(ewslnteyeArr)eel:pcnuooeshleysoud(lslfti(oynPnrVetahnAtiees,) swuolfrokn. aNte,N) (-PdEimDeOthTy:PlfSoSr)mdaismpiedresi(oDnMliqFu) aidnd(1e.0t5hawnto%l (dSiisnpoeprhsiaornminCwheamteirc,aSlhRaenaggheanit,,CShhainnag)hwaie,rCehuisnead), iAnctehtiosnwe o(Lrka.iyNa,nNg-dFiimneeCthhyelmfoircmalaFmaicdtoer(yD, MLaFiy) aanngd, eCthhiannao).l (cSoipnpoeprhfaoriml taCphee(mdoicuabl lRe-esaigdeendt,coSnhdanugcthivaie,, CDhoinngag),uAanc,eCtohniena()L.aiyang Fine Chemical Factory, Laiyang, China). copper foil tape (double-sided conductive, Dongguan, China)
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