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STUDY OF THE NON-NBT PHASE INSrDOPED NBT THIN FILMS

Author

Listed:
  • HUIZHONG XU

    (School of Environment and Materials Engineering, Yantai University, Yantai 264005, P. R. China)

  • YAPING WANG

    (Wenjing College, Yantai University, Yantai 264005, P. R. China)

  • DAJI LI

    (North Material Science and Engineering Technology, Group Corporation of China, Yantai 264003, P. R. China)

  • JIANYUAN XU

    (Research Institute of Electronic Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China)

  • ZHUO WANG

    (School of Environment and Materials Engineering, Yantai University, Yantai 264005, P. R. China)

  • LIANG ZHEN

    (School of Material Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China)

Abstract

The morphology, composition and mechanism of the non-NBT phase in theSr-doped NBT [SNBT,(Na0.5Bi0.5)1-xSrxTiO3] thin films by chemical method were investigated using XRD, SEM, crystallization analysis and thermodynamics analysis. The results showed that the non-NBT phase is the porphyroblastic grains in the matrix and looks like a plate-shaped polyhedron. The mechanism of the non-NBT phase formation is that theSr2+andNa+combined with${\rm TiO}_{3}^{2-}$to form initial simple titanate, such asSrTiO3,Na2TiO3, or NBT phase decomposed because of the volatilization ofBiunder a higher annealing temperature or longer annealing duration, and then transform into the secondary simple titanates(Sr2+,2Na+)TiO3or(Sr,Na)xTiyOz. Moreover, the NBT phase disappeared for the SNBT films annealing at temperatures higher than 600°C and for 15 min.

Suggested Citation

  • Huizhong Xu & Yaping Wang & Daji Li & Jianyuan Xu & Zhuo Wang & Liang Zhen, 2013. "STUDY OF THE NON-NBT PHASE INSrDOPED NBT THIN FILMS," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 20(06), pages 1-6.
    • Handle: RePEc:wsi:srlxxx:v:20:y:2013:i:06:n:s0218625x1350056x
    DOI: 10.1142/S0218625X1350056X
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