Enhanced Piezoelectricity in a Robust and Harmonious Multilayer Assembly of Electrospun Nanofiber Mats and Microbead-Based Electrodes
- Authors
- Kim, Young Won; Lee, Han Bit; Yeon, Si Mo; Park, Jeanho; Lee, Hye Jin; Yoon, Jonghun; Park, Suk Hee
- Issue Date
- Feb-2018
- Publisher
- AMER CHEMICAL SOC
- Keywords
- piezoelectric nanofiber; electrospinning; microbead; vacuum packing; energy generator
- Citation
- ACS APPLIED MATERIALS & INTERFACES, v.10, no.6, pp.5723 - 5730
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS APPLIED MATERIALS & INTERFACES
- Volume
- 10
- Number
- 6
- Start Page
- 5723
- End Page
- 5730
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/6762
- DOI
- 10.1021/acsami.7b18259
- ISSN
- 1944-8244
- Abstract
- Here, we present a simple yet highly efficient method to enhance the output performance of a piezoelectric device containing electrospun nanofiber mats. Multiple nanofiber mats were assembled together to harness larger piezoelectric sources in the as-spun fibers, thereby providing enhanced voltage and current outputs compared to those of a single-mat device. In addition to the multilayer assembly, microbead-based electrodes were integrated with the nanofiber mats to deliver a complexed compression and tension force excitation to the piezoelectric layers. A vacuum-packing process was performed to attain a tight and well-organized assembly of the device components even though the total thickness was several millimeters. The integrated piezoelectric device exhibited a maximum voltage and current of 10.4 V and 2.3 mu A, respectively. Furthermore, the robust integrity of the device components could provide high-precision sensitivity to perceive small pressures down to approximately 100 Pa while retaining a linear input-output relationship.
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