Accession Number : ADD015543

Title :   Oriented, Single-Phase Thin Films of Potassium Tantalate-Niobate.

Descriptive Note : Patent Application, Filed 25 Sep 92,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Nazari, Azar ; Kahn, Manfred

Report Date : 25 Sep 1992

Pagination or Media Count : 44

Abstract : An oriented, essentially single phase perovskite film of potassium tantalate-niobate is formed. Preferred substrate surfaces for deposition include SrTiO3 (110) and (100) and MgO (100). Films formed on SrTiO3 (110) and (100) are epitaxial. The films are formed by applying a solution of an organometallic complex of tantalum, potassium and niobium onto a substrate surface. The deposited solution is dried and organics removed by heating. The thus formed film is then transferred to an oven preheated to a temperature of between about 700 deg C and 750 deg C. After cooling, further layers of single phase, oriented potassium tantalate-niobate may be deposited by repeating the same procedures. The deposited films can form form useful device for microelectronics and electro-optics. (Author)

Descriptors :   *PATENT APPLICATIONS, *THIN FILMS, *POTASSIUM COMPOUNDS, *TANTALATES, *NIOBATES, SUBSTRATES, SURFACES, DEPOSITION, STRONTIUM, OXIDES, MAGNESIUM OXIDES, EPITAXIAL GROWTH, ORGANOMETALLIC COMPOUNDS, HEAT TREATMENT, TEMPERATURE, LAYERS, MICROELECTRONICS, ELECTROOPTICS, OPTICS, FERROELECTRIC MATERIALS, PEROVSKITES

Subject Categories : Electrical and Electronic Equipment
      Electricity and Magnetism
      Inorganic Chemistry
      Crystallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE