Synthesis and Characterization of Ferroelectric Thin Films and Ceramics

• Grant number: 00/01991-0
• Support Opportunities: Research Projects - Thematic Grants
• Start date: September 01, 2000
• End date: May 31, 2005
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: José Arana Varela
• Grantee: José Arana Varela
• Host Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
• Pesquisadores principais: Carlos de Oliveira Paiva Santos ; Mario Cilense
• Associated research grant(s): 02/01934-2 - Letrical properties of screen printed batio3 thick films., AR.EXT
• Associated scholarship(s): 01/13743-4 - Conversion of the enviromental heat to electricity by means of ferroelectrics, BP.PD; 01/02560-6 - Grain boundary phenomena at barium titanate doped by vapour phase diffusion, BP.PD

Abstract

[...] The main objective is to promote a quality substantial improvement on the understanding of these films and ceramics, when compared with former research developed by the group and with the literature. This proposal aims to the obtation of ferroelectric thin films and ceramics through chemical processes, in the amorphous or crystalline form and that exhibit ferroelectric, dielectric, piezoelectric, electrooptic properties for application in devices in the microelectronic such as: capacitors, actuators, FERAM and DRAM memories, microactuators, displays, modulators, sensors etc. [...] The main goal of this project, therefore, is to obtain ferroelectric and thin films through the use of polymeric precursors, with properties equal or superior to that obtained by the methods reported in the literature (AU)

Scientific publications

(4)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

BRANKOVIC, Z.; BRANKOVIC, G.; VARELA, J. A.. Microstructural investigation of the PZT films prepared from the suspension of nanocrystalline powders. Journal of the European Ceramic Society, v. 24, n. 6, p. 1945-1948, ago. 2004. (00/01991-0)

SIMÕES, A. Z.; GONZALEZ, A. H.; ZAGHETE, M. A.; LONGO, E.; VARELA, J. A.. Effect of thermal treatment temperature on the crystallinity and morphology of LiTaO3 thin films prepared from polymeric precursor method. Journal of Electroceramics, v. 13, n. 1-3, p. 353-359, jul. 2004. (00/01991-0)

BRANKOVIC‚ G.; BRANKOVIC‚ Z.; DAVOLOS‚ MR; CILENSE‚ M.; VARELA‚ JA. Influence of the common varistor dopants (CoO‚ Cr₂ O₃ and Nb₂ O₅) on the structural properties of SnO₂ ceramics. MATERIALS CHARACTERIZATION, v. 52, n. 4, p. 243-251, 2004. (00/01991-0)

MASTELARO‚ V.R.; FOSCHINI‚ C.R.; VARELA‚ J.A.. Grazing incidence X-ray diffraction and atomic force microscopy analysis of BaBi₂ Ta₂ O₉ thin films. Thin Solid Films, v. 415, n. 1, p. 57-63, 2002. (00/01991-0)