Structural characterization of BaTiO3 films by sol-gel method using mono-substituting chelating agent

Autor: Woei-Kwo Kuo, Jyh-Ping Wang, Yong-Chien Ling
Rok vydání: 1996
Předmět:
Zdroj: Applied Surface Science. 92:155-158
ISSN: 0169-4332
DOI: 10.1016/0169-4332(95)00221-9
Popis: BaTiO 3 films have been deposited onto Pt Si substrates by repeated spin-coating and heat-treatment of precursors prepared by a sol-gel process using Ti(O- i Pr) 4 , Ba(CH 3 COO) 2 , and chelating agent CH 3 COCH 2 COCH 3 . These films exhibit cubic phase structure and possess desired (110) orientation. Representative fragments Ti + , TiO + , Ba + and BaOH + from BaTiO 3 lattices are observed in the positive static SIMS spectrum. A well-defined interface between a BaTiO 3 film and a Pt Si substrate suggests that the proposed method is capable of depositing BaTiO 3 films onto Pt Si substrates without Si diffusion from underlying Pt Si substrates.
Databáze: OpenAIRE