Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
권호 표지
DOI QR코드

DOI QR Code

Structural Properties of P(VDF-TrFE) LB Films

P(VDF-TrFE) LB박막의 구조특성

  • 곽은휘 (청주대학교 레이저광정보공학과) ;
  • 이진호 (청주대학교 레이저광정보공학과) ;
  • 정치섭 (청주대학교 레이저광정보공학과)
  • Published : 2009.08.01

Abstract

We report the studies on the structrural properties of Langmuir Blodgett (LB) films fabricated from the copolymer of vinylidenefluoride (VDF) with trifluoroethylene(TrFE). The formation of nanomesas induced by thermal annealing at $135\;^{\circ}C$ for 1 hour was investigated with the atomic force microscope (AFM) and the X-ray diffractometer (XRD). From the result of surface morphology change in 30 monolayer LB film, we find that the annealing treatment on the P(VDF-TrFE) LB film result in the plastic deformation of crystalline polymer. The ${\beta}$ phase crytalline structure in annealed LB film was clearly confirmed from the XRD peak at $19.7^{\circ}$.

Keywords

File

Download PDF

References

  1. Tashiro K. in : Nalwa HS, editor. 'Ferroelectric polymers', New York: Marcel Dekker, p. 65, 1995
  2. Wang T. T., Herbert J. M., and Glass A. M., edit, 'Application of ferroelectric polymers', Glasgow: Blackie, 1988
  3. J. F. Scott, 'Ferroelectric Memories', Berlin, Germany: Springer-Verlag, 2000
  4. Tashiro K., Takano K., Kobayashi M., Chatani Y., and Tadokoro H., 'Structural study on ferroelectric phase transition of vinylidene fluoride-trifluoroethylene random copolymers', Polymer, Vol. 22, p. 1312, 1981 https://doi.org/10.1016/0032-3861(81)90226-3
  5. M. Hikosaka, 'Unified theory of nucleation of folded-chain crystals and extended-chain crystals of linear-chain polymers', Polymer, Vol. 28, p. 1257, 1987 https://doi.org/10.1016/0032-3861(87)90434-4
  6. M. Hikosaka, 'Unified theory of nucleation of folded-chain crystals (FCCs) and extended-chain crystals (ECCs) of linear- chain polymers: Origin of FCC and ECC', Polymer, Vol. 31, p. 458, 1991 https://doi.org/10.1016/0032-3861(90)90385-C
  7. S. N. Fedosov and A. E. Sergeeva, 'Corona poling of ferroelectric and nonlinear optical polymers', Moldavian Journal of the Phys. Sci., No. 2, p. 28, 2002
  8. M. Stähelin, D. M. Burland, M. Ebert, R. D. Miller, B. A. Smith, R. J. Twieg, W. Volksen, and C. A. Walsh, 'Re-evaluation of the thermal stability of optically nonlinear polymeric guest-host systems', Appl. Phys. Lett., Vol. 61, p. 1626, 1992 https://doi.org/10.1063/1.108497
  9. M. Eich, B. Reck, D. Y. Yoon, C. G. Willson, and G. C. Bjorklund, 'Novel second-order nonlinear optical polymers via chemical cross-linking-induced vitrification under electric field', J. Appl. Phys., Vol. 66, p. 3241, 1989 https://doi.org/10.1063/1.344115
  10. D. Jungbauer, B. Reck, R. Twieg, D. Y. Yoon, C. G. Willson, and J. D. Swalen, 'Highly efficient and stable nonlinear optical polymerdss via chemical cross-linking under electric field', Appl. Phys. Lett., Vol. 56, p. 2610, 1990 https://doi.org/10.1063/1.102853
  11. P. M. Ranon, Y. Shi, and W. H. Steier, 'Efficient poling and thermal crosslinking of randomly bonded main-chain polymers for stable second-order nonlinearities', Appl. Phys. Lett., Vol. 62, p. 2605, 1993 https://doi.org/10.1063/1.109285
  12. N. Tsutsumi, G. T. Davis, and A. S. De Reggi, 'Measurement of the internal electric field in a ferroelectric copolymer of vinylidene fluoride and trifluoroethylene using electrochromic dyes', A. S. Macromolecules, Vol. 24, p. 6392, 1991 https://doi.org/10.1021/ma00024a004
  13. G. Roberts, 'Langmuir-Blodgett Films', New York, p. 118, 1990
  14. C. S. Jung, 'Fabrication and optical study of P(VDF-TrFE) langmuir-blodgett films', Journal of the Korean Phys. Soci., Vol. 53, No. 5, p. 2646, 2008 https://doi.org/10.3938/jkps.53.2646
  15. S. Ducharme, T. J. Reece, C. M. Othon, and R. K. Rannow, 'Ferroelectric polymer langmuir- blodgett films for nonvolatile memory applications', IEEE, Vol. 5, No. 4, p. 720, 2005
  16. M. Bai and S. Ducharme, 'Ferroelectric nanomesa formation from polymer langmuir- blodgett films', Appl. Phys. Lett., Vol. 85, No. 16, p. 3528, 2004 https://doi.org/10.1063/1.1808251
  17. G. Zhu, J. Xu, Z. Zeng, L. Zhang, X. Yan, and J. Li, 'Electric field dependence of topography in ferroelectric P(VDF-TrFE) films', Appl. Surf. Sci., Vol. 253, Issue 5, p. 2498, 2006 https://doi.org/10.1016/j.apsusc.2006.05.007
  18. W. Li, Y. Zhu, D. Hua, P. Wang, X. Chen, and J. Shen, 'Crystalline morphologies of P(VDF-TrFE) (70/30) copolymer films above melting point', Appl. Surf. Sci., Vol. 254, Issue 22, p. 7321, 2008 https://doi.org/10.1016/j.apsusc.2008.05.339