Advertisement

Journal of Materials Science

, Volume 44, Issue 20, pp 5469–5474 | Cite as

Electrical characterization of LiTaO3:P(VDF–TrFE) composites

  • Padmaja Guggilla
  • A. K. Batra
  • M. E. Edwards
Article

Abstract

Composites of pyroelectric ceramics and polymers are very important as their unique features and properties can be easily tailored for various specific applications. Lithium tantalatum oxide (LiTaO3, LT), the pyroelectric ceramic powder has been incorporated into a polyvinylidene fluoride–trifluoroethylene [P(VDF–TrFE) 70/30 mol%] copolymer matrix to form 0–3 composites. The composite films were prepared using ‘solvent casting’ (SC) method to disperse the ceramic powder homogeneously in the P(VDF–TrFE) copolymer matrix with various wt% of LT powder. In order to derive high pyroelectric performance, the samples were poled. Electric properties, such as the dielectric constant, dielectric loss, and pyroelectric coefficient, have been measured as a function of temperature and frequency. In addition, material figures-of-merit, very important factors for assessing many sensor applications have also been calculated. The results show that the fabricated lead free lithium tantalite: P(VDF–TrFE) composite materials have a good potential for pyroelectric infrared sensor applications.

Keywords

Dielectric Constant Composite Film LiTaO3 Lead Titanate Pyroelectric Coefficient 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

The financial supports for this work through SMDC Grant # W9113M-05-1-0011 and NSF-RISE Grant # HRD-0531183 is gratefully acknowledged.

References

  1. 1.
    Dorey RA, Whatmore RW (2005) J Eur Ceram Soc 25:2379CrossRefGoogle Scholar
  2. 2.
    Van Valck LH (1989) Elements of materials science and engineering, 6th edn. Prentice Hall, pp 347–372Google Scholar
  3. 3.
    Corker DL, Zhang Q, Whatmore RW, Perrin C (2002) J Eur Ceram Soc 22:383CrossRefGoogle Scholar
  4. 4.
    Koga K, Ohigashi H (1986) J Appl Phys 56(6):2142CrossRefADSGoogle Scholar
  5. 5.
    NG KL, Helen LWC, Choy CL (2000) IEEE Trans Ultrason Ferroelectr Freq Control 47:1308PubMedCrossRefGoogle Scholar
  6. 6.
    Aggarwal MD, Currie JR, Penn BG, Batra AK, Lal RB (2007) NASA/TM-2007-215190Google Scholar
  7. 7.
    Newnham RE, Skinner DP, Cross LE (1978) Mat Res Bull 13:525CrossRefGoogle Scholar
  8. 8.
    Tressler JF, Alkoy S, Newnham RE (1999) Composites A 30:477CrossRefGoogle Scholar
  9. 9.
    Kwok-ho L, Xiaoxing W, Helen L (2005) Composites A 36:1595CrossRefGoogle Scholar
  10. 10.
    Weis RS, Gaylord TK (1985) Appl Phys A 37:191CrossRefADSGoogle Scholar
  11. 11.
    Furukawa T, Johnson GE, Bair HE (1981) Ferroelectrics 32:61CrossRefGoogle Scholar
  12. 12.
    Carl AK (1985) Materials science in engineering, 4th edn. Elsevier Science SeriesGoogle Scholar
  13. 13.
    Lam KH, Chan HLW (2005) Compos Sci Technol 65:1107CrossRefGoogle Scholar
  14. 14.
    Dias CJ, Das-Gupta DK (1996) IEEE Trans Die Elect Ins 3(5):706 and references thereinGoogle Scholar
  15. 15.
    Batra AK, Simmons M, Guggilla P, Aggarwal MD, Lal RB (2004) Integr Ferroelectr 63:161CrossRefGoogle Scholar
  16. 16.
    Lang SB, Das-Gupta DK (2000) Ferroelectr Rev 2:217Google Scholar
  17. 17.
    Byer RL, Roundy CB (1972) Ferroelectrics 3:333CrossRefGoogle Scholar
  18. 18.
    Lal RB, Batra AK (1993) Ferroelectrics 142:51CrossRefGoogle Scholar
  19. 19.
    Kothale MB, Patankar KK, Kadam SL, Mathe VL, Rao AV, Chougule BK (2002) Mater Chem Phys 77:691CrossRefGoogle Scholar
  20. 20.
    Vishvanathan B, Murthy VRK (1990) Ferrite materials science and technology. Narosa Publishing House, New Delhi, p 219Google Scholar
  21. 21.
    Zhai JY, Cai N, Liu L, Lin YH, Nan CW (2004) J Phys D Appl Phys 37:823CrossRefADSGoogle Scholar
  22. 22.
    Upadhyay S, Kumar D, Prakash O (1996) Bull Mater Sci 19:513CrossRefGoogle Scholar
  23. 23.
    Keer HV (1993) Principles of the solid state, 1st edn. New Age International Publishers, pp 302–330Google Scholar
  24. 24.
    Kulkarni SR, Kanamadi CM, Chougule BK (2005) Mater Res Bull 40:2064CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Padmaja Guggilla
    • 1
  • A. K. Batra
    • 1
  • M. E. Edwards
    • 1
  1. 1.Department of PhysicsAlabama A&M UniversityNormalUSA

Personalised recommendations