• DocumentCode
    2531022
  • Title

    Study on the defect chemistry of Ca2+ as acceptor dopant in BaTiO3

  • Author

    XiaoWen, Zhang ; Ying, Wang ; Longt, Li

  • Author_Institution
    Tsinghua Univ., Beijing, China
  • fYear
    1988
  • fDate
    12-16 Sep 1988
  • Firstpage
    186
  • Abstract
    The measurement of high-temperature conductivity and positron annihilation lifetime were used to analyze the defect chemistry of Ca-doped BaTiO3. The results show that Ca2+ can substitute for Ti4+ and act as an acceptor dopant. The maximum solid solubility of Ca2+ at the Ti4 site is nearly 1.5 mol%. The solubility of Ca2+ is consistent with the result obtained by XRD measurement published previously. Ca2+ as an acceptor impurity is more efficient than others such as Al 3+. This may be related to the electron configuration of the ion
  • Keywords
    barium compounds; calcium; ceramics; dielectric materials; electrical conductivity of crystalline semiconductors and insulators; impurity electron states; positron annihilation in liquids and solids; solid solubility; BaTiO3:Ca2+; XRD measurement; acceptor dopant; defect chemistry; electron configuration; high-temperature conductivity; positron annihilation lifetime; solid solubility; Barium; Calcium; Chemistry; Conductivity measurement; Electrodes; Positrons; Raw materials; Semiconductor materials; Temperature; Titanium compounds;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Properties and Applications of Dielectric Materials, 1988. Proceedings., Second International Conference on Properties and Applications of
  • Conference_Location
    Beijing
  • Type

    conf

  • DOI
    10.1109/ICPADM.1988.38365
  • Filename
    38365
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2531022