Direct-Write Piezoelectric Polymeric Nanogenerator with High Energy Conversion Efficiency

Chang, Chieh and Tran, Van H. and Wang, Junbo and Fuh, Yiin-Kuen and Lin, Liwei. (2010) Direct-Write Piezoelectric Polymeric Nanogenerator with High Energy Conversion Efficiency. Nano Letters, 10 (2). pp. 726-731. ISSN 1530-6984

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Nanogenerators capable of converting energy from mechanical sources to electricity with high effective efficiency using low-cost, nonsemiconducting, organic nanomaterials are attractive for many applications, including energy harvesters. In this work, near-field electrospinning is used to direct-write poly(vinylidene fluoride) (PVDF) nanofibers with in situ mechanical stretch and electrical poling characteristics to produce piezoelectric properties. Under mechanical stretching, nanogenerators have shown repeatable and consistent electrical outputs with energy conversion efficiency an order of magnitude higher than those made of PVDF thin films. The early onset of the nonlinear domain wall motions behavior has been identified as one mechanism responsible for the apparent high piezoelectricity in nanofibers, rendering them potentially advantageous for sensing and actuation applications.

Item Type: Article
Uncontrolled Keywords: nanogenerator, near-field electrospinning, direct-write nanofibers, piezoelectric, energy harvesting, vibrational energy, polymeric nanogenerators, polynanofibers, wireless sensors, sensing, embedded power sources, self-powered textiles, PVDF nanofiber power generators
InterNano Taxonomy: Areas of Application > Energy and Utilities
Nanoscale Objects and Nanostructured Materials > Nanowires > Nanofibers
Nanoscale Objects and Nanostructured Materials > Nanodevice Structures
Collections: Nanomanufacturing Research Collection
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Depositing User: Mr. Richard L Rosen
Date Deposited: 13 Jul 2010 15:55
Last Modified: 13 Jul 2010 15:55

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