Journal
NANO LETTERS
Volume 10, Issue 6, Pages 2133-2137Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl100812k
Keywords
Lead zirconate titanate (PZT); piezoelectric nanogenerator; nanofiber; electrospinning; mechanical energy; bio-MEMS
Categories
Funding
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [0826418] Funding Source: National Science Foundation
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [0802168] Funding Source: National Science Foundation
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Energy harvesting technologies that are engineered to miniature sizes, while still increasing the power delivered to wireless electronics,(1,2) portable devices, stretchable electronics,(3) and implantable biosensors,(4,5) are strongly desired. Piezoelectric nanowire- and nanofiber-based generators have potential uses for powering such devices through a conversion of mechanical energy into electrical energy. However, the piezoelectric voltage constant of the semiconductor piezoelectric nanowires in the recently reported piezoelectric nanogenerators(7-12) is lower than that of lead zirconate titanate (PZT) nanomaterials. Here we report a piezoelectric nanogenerator based on PZT nanofibers. The PZT nanofibers, with a diameter and length of approximately 60 nm and 500 mu m, were aligned on interdigitated electrodes of platinum fine wires and packaged using a soft polymer on a silicon substrate. The measured output voltage and power under periodic stress application to the soft polymer was 1.63 V and 0.03 mu W, respectively.
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