A NEW CALIX[4] ARENE-BASED BARIUM PRECURSOR FOR BAO-TIO2 THIN-FILM DEPOSITION

In the present work we describe the design, syntheses, and use of a ne w barium metalloorganic precursor for barium titanate thin film deposi tion. Barium-containing thin films deposited by different deposition m ethods are widely used for various applications in optics and electron ics. An important goal for applications is concerned with the producti on of stable, fluorine free barium-metalloorganic precursor materials, to obtain better performance photonic devices. We describe an alterna tive barium-metalloorganic precursor based on a calixarene ligand, its application to dip coating and thin film growth of the BaO-TiO2 famil y of compounds, and studies of these films by second harmonic generati on. The BaTiO3 films showed promising nonlinear optical response for g uided wave-applications.