4.6 Article

Synthesis and dielectric investigations of ZnTiO3 obtained by a soft chemistry route

Journal

MATERIALS CHEMISTRY AND PHYSICS
Volume 134, Issue 1, Pages 87-92

Publisher

ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2012.02.033

Keywords

Precipitation; Sintering; Ceramics; Raman spectroscopy and scattering; Dielectric properties; Electronic materials

Funding

  1. Ministry of Science and Higher Education of Poland [N N507 279636]

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In this paper, we report a strategy for preparing an inorganic zinc titanate precursor by applying a chemical bath deposition method (CBD) to ZnO nanocrystals in an aqueous layered titanate colloid. The zinc titanate precursor, obtained as a precipitate, undergoes profound changes under the influence of elevated temperatures in normal atmospheric conditions and allows us to obtain zinc titanate ZnTiO3 with a rhombohedral symmetry. Investigations of its dielectric properties enabled us to determine a dielectric permittivity (epsilon) of 25, a low loss factor tan(delta) < 10(-3), and a temperature coefficient (tau(epsilon)) of 18 ppm at the frequency of 1.15 MHz. The density of the zinc titanate ceramic was equal to approximately 80% of the theoretical density of the ZnTiO3 crystals. (C) 2012 Elsevier B.V. All rights reserved.

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