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X-ray photoelectron spectroscopy study of La-modified Bi2Ti 2O7 thin film

  • Y. Zhang
  • , H. Wang
  • , S. X. Shang
  • , X. H. Xu
  • , X. N. Yang
  • , W. M. Liu
  • Shandong University
  • Shandong Institute of Education
  • CAS - Lanzhou Institute of Chemical Physics

科研成果: 期刊稿件文章同行评审

11 引用 (Scopus)

摘要

Bi2Ti2O7 (BTO) thin films have attracted attention because of its high dielectric constant and good insulating property. Bi2Ti2O7 is an unstable phase in the process of the Bi4Ti3O12 formation, and the phase structure can be stabilized by ionic modification. Bi2Ti 2O7 and La-modified Bi2Ti2O 7 thin films were prepared on Si (100) substrates by metalorganic decomposition (MOD). X-ray photoelectron spectroscopy (XPS) results indicated influence of oxygen vacancies and substituting Bi atoms with some La atoms. We investigated difference between Bi4Ti3O12 and Bi2Ti2O7 thin films. For (LaxBi 1-x)2Ti2O7 thin films (BLT), phase stability is related to La modification.

源语言英语
页(从-至)1056-1058
页数3
期刊Materials Letters
58
6
DOI
出版状态已出版 - 2月 2004
已对外发布

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