Facile Preparation of Ferroelectric Poly(Vinylidene Fluoride-co-Trifluoroethylene) Thick Films by Solution Casting

  • Ahn, Gun; 
  • Kim, Su Ran; 
  • Choi, Yoon-Young; 
  • Song, Han Wook; 
  • Sung, Tae-Hyun; 
  • ... Hong, Jongin; 
  • 외 1명
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초록

We investigated the effects of annealing temperature and vacuum treatment on the crystallinity and ferroelectric properties of solution-casted poly(vinylidene-fluoride-co-trifluoroethylene), P(VDF-TrFE), thick films. We varied the annealing temperature from 70 degrees C to 150 degrees C and achieved high-quality ferroelectric thick films annealed at 130 degrees C. Ferroelectric domains and their properties were confirmed using X-ray diffraction, Fourier transform infrared spectroscopy with attenuated total reflection mode and ferroelectric/piezoelectric measurement systems. Drying and/or annealing in the vacuum allowed for the improvement of crystallinity and ferroelectric/piezoelectric properties. Importantly, the piezoelectric coefficient, d(33), of our optimal P(VDF-TrFE) films after sufficient poling treatment was 36 pC/N and our P(VDF-TrFE) power generator produced an output voltage of similar to 6 V under periodic bending and unbending motions. POLYM. ENG. SCI., 54:466-471, 2014. (C) 2013 Society of Plastics Engineers

키워드

FLUORIDE TRIFLUOROETHYLENE COPOLYMER; VINYLIDENE FLUORIDE; FLUORIDE-TRIFLUOROETHYLENE); CRYSTALLINE; DEPENDENCE; TRANSITION; POLYMERS; LAYERS
제목
Facile Preparation of Ferroelectric Poly(Vinylidene Fluoride-co-Trifluoroethylene) Thick Films by Solution Casting
저자
Ahn, Gun; Kim, Su Ran; Choi, Yoon-Young; Song, Han Wook; Sung, Tae-Hyun; Hong, Jongin; No, Kwangsoo
DOI
10.1002/pen.23570
발행일
2014-02
유형
Article
저널명
Polymer Engineering and Science
권
54
호
2
페이지
466 ~ 471