Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 32, Issue 11, Pages 831-837Publisher
WILEY-BLACKWELL
DOI: 10.1002/marc.201100040
Keywords
curie transition temperature; electrospun nanofiber web; infrared spectroscopy; nanogenerator; preferential dipole orientation; P(VDF-TrFE)
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Funding
- Kyung Hee University [KHU 20100153]
- Ministry of Education, Science, and Technology [R11-2005-065]
- National Research Foundation of Korea [2008-0057632] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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A single stage electrospinning process can give rise to preferentially oriented induced dipoles in poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] nanofibers. The piezoelectricity of as-electrospun P(VDF-TrFE) nanofiber webs opens up new possibilities for their use as a flexible nanogenerators and nano-pressure sensors. In this work, the origin of the piezoelectricity has been spotlighted by randomization of the induced dipoles at the Curie temperature and analyzed by polarized FT-IR spectroscopic techniques as well as by detecting the piezoelectric signal from a nano-pressure sensor.
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