Utilized NFES piezoelectric fibers to fabricate all-directional or transparent graphene-based generators
| Autor: | Zih-Ming Huang, 黃梓銘 |
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| Rok vydání: | 2015 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 103 In this thesis, the near-field electrospinning (NFES) technique was used to investigate the piezoelectric fibers and fabricated the nanogenerators. The major research focused on (1) Massively aligned nanofibers-based nanogenerator deposited via near-field electrospinning, (2) An arbitrarily directional piezoelectric fiber-based nanogenerator with concentric circle topography via near-field electrospinning, (3) A transparent and flexible graphene-piezoelectric fiber generator. We demonstrate a direct-write, in-situ poled polyvinylidene fluoride (PVDF) nanofiber arrays that could functions as a self-powered active deformation sensor or harvester. This research is different from previous electrospinning research, however the fibers were mostly patterned in parallel lines and they could be actuated in limited direction only. We fabricated this apparatus precisely via near field electrospinning which has a spectacular concentric circle topography which made it possible to collect the mechanical energy from various directions. Furthermore, we also utilized the graphene as electrode to fabricate a flexible and transparent NG. Compared to previous opaque Cu-foil electrode, the graphene based NG has a promising future in the applications of smart phone or wearable electronics as a self-power system. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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