title: Origin of piezoelectricity in an electrospun poly(vinylidene fluoride-trifluoroethylene) nanofiber web-based nanogenerator and nano-pressure sensor.
abstract: 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.
authors.affiliation: Department of Advanced Materials Engineering for Information and Electronics, College of Engineering, Kyung Hee University, 1 Seocheon-dong, Giheung-gu, Yongin-si, Gyeonggi-do, 446-701, Republic of Korea.
authors.forename: Dipankar
authors.initials: D
authors.lastname: Mandal
authors.forename: Sun
authors.initials: S
authors.lastname: Yoon
authors.forename: Kap Jin
authors.initials: KJ
authors.lastname: Kim
mesh_terms: D006845:Hydrocarbons, Fluorinated / Q000737:chemistry*; D057139:Nanofibers / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D011312:Pressure; D012399:Rotation; D017550:Spectroscopy, Fourier Transform Infrared; D055672:Static Electricity; D044366:Transition Temperature; D014732:Vibration; D014753:Vinyl Compounds / Q000737:chemistry*
chemical_list: D006845:Hydrocarbons, Fluorinated; D011108:Polymers; D014753:Vinyl Compounds; C522521:poly(vinylidenefluoride-trifluoroethylene)