Search academic texts

Registration Number

0215U002084, 0114U005232 , R & D reports

Title

Multifunctional ferroelectric materials based on Ag(Nb,Ta)O3

Head

Belous Anatolii,

Registration Date

28-01-2015

Organization

V.I.Vernadskii Institute of General and Inorganic Chemistry NASU

Description

Report on the 1st stage of R&D. 30 pp., 12 figs. Object of investigation - thin film polycrystalline ferroelectric materials based on solid solutions Ag(Nb,Ta)O3 (ANT) with a perovskite structure. The purpose of this project - the development of new highly multifunctional materials based on ANT with significantly improved performance for the applications in microwave dielectric and nonlinear components. As a result of Stage 1 of R&D, thin films of ANT have been deposited on polycrystalline Al2O3 dielectric substrates by means of sol-gel technique as well as by pulsed laser. Synthesized materials and heterostructures combine high values of dielectric constant (e = 200 - 500 ), low dielectric loss at microwave range (tg delta << 10-1) and a strong dielectric non-linearity (nR = 20 - 30 %). Pulsed laser deposition has been shown to provide production of almost monophase films with high-quality parameters. In contrast, sol-gel technique demonstrates better manufacturability, and reproducibility of properties. The experimental data denote a significant potential of the proposed materials for various applications in modern technology of wireless radio and radar. As a result of the project activities, science-technical cooperation between scientists from Ukraine and Slovenia has been established. OXIDES, FERROELECTRICS, SOLID SOLUTIONS, DIELECTRIC CHARACTERISTICS

Product Description

popup.authors

В'юнов Олег Іванович
Дурилін Дмитро Олександрович
Коваленко Леонід Леонідович
Овчар Олег Вікторович
Соловйова Катерина Дмитрівна
Солопан Сергій Олександрович
Суслов Олександ Миколайович
Хоменко Борис Семенович