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Study on the pyroelectric properties of PLT/P (VDF-TrFE) nanocomposites

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Chinese Science Bulletin

Abstract

Lead lanthanum titanate (PLT) nanocrystalline powder prepared by the sol-gel process was incorparated into a polyvinylidene fluoride/trifluoroethylene (P(VDF-TrEF)) copolymer matrix to form PLT/P (VDF-TrFE) nanocomposites. The permittivities (ε) of the nanocomposites as a function of volume fraction of ceramic ϕ were modeled using the Bruggeman model. The pyroelectric coefficients (p) and figure of merit (p/ε) were measured as functions of the poling fieldE. The nanocomposite hasp and p/ε values higher than those of the copolymer, and has good potential in pyroelectric applications.

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References

  1. Safari, A., Newnham, K. E., Cross, I. E.et al., Perforated PZT-polymer composites for piezoelectric transducer applications,Ferroelectrics, 1982, 4: 197.

    Google Scholar 

  2. Newnham, R. E., Skinner, D. P., Cross, L. E., Connectivity and piezoelectric pyroelectric composites,Materials Research Bulletin, 1978, 13: 525.

    Article  CAS  Google Scholar 

  3. Birringer, R., Gleiter, H., Klein, H. P.et al., Nanocrystalline materials: an approach to a novel solid structure with gas-like disorder,Physica Letters, 1984, 102A: 365.

    Article  CAS  Google Scholar 

  4. Zhou, Q. F., Chan, H. L. W., Zhang, Q. Q.et al., Structure of nanocrystalline powder and thin films of lead lanthanum titanate prepared by the sol-gel process, inProceedings of the 9th International Symposium on Electrets, Shanghai, China, Shanghai: Shanghai Jiaotong University Press, 1996, 656–659.

    Google Scholar 

  5. Kani, K., Murakami, H., Watari, K.et al., Sol-gel processing and pyroelectric properties of Lanthanum-modified PbTiO3 thin films,J. Mater. Sci. Lett., 1992, 11: 1605.

    Article  CAS  Google Scholar 

  6. I,i, J. D., The digital integration method for feroelectric measurements,Journal of Zhongshan University (in Chinese), 1981, 20: 40.

    Google Scholar 

  7. Bruggeman, D. A. G., Berechnung verschiedener physikalischer konstanten vonheterogenen substanzen,Ann. Phys. Lpz. 1935, 24: 636.

    Article  CAS  Google Scholar 

  8. Dias, C. J., Das-Gupta, D. K.,Ferroelectric Polymers and Ceramic-polymer Composites (ed. Das-Gupta, D. K.), Switzerland: Trans Tech Pub., 1994, 217.

  9. Wang, M., Fang, C. S., Zhou, H. S., Study of the pyroelectric properties of TGS-PVDF composites,Ferroelectrics, 1991, 118: 191.

    CAS  Google Scholar 

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Authors and Affiliations

  1. Department of Applied Physics and Materials Research Centre, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China

    Qingqi Zhang, Chan H. L. W., Qifa Zhou & Choy C. L.

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  1. Qingqi Zhang
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  2. Chan H. L. W.
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  3. Qifa Zhou
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  4. Choy C. L.
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Zhang, Q., Chan, H.L.W., Zhou, Q. et al. Study on the pyroelectric properties of PLT/P (VDF-TrFE) nanocomposites. Chin. Sci. Bull. 43, 111–114 (1998). https://doi.org/10.1007/BF02883919

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  • DOI: https://doi.org/10.1007/BF02883919

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