Accession Number : ADA258345


Title :   Metallo-Organic Solution Deposition of Ferroelectric PZT Films


Descriptive Note : Technical rept.


Corporate Author : AEROSPACE CORP EL SEGUNDO CA ELECTRONICS TECHNOLOGY CENTER


Personal Author(s) : Lipeles, Russell A ; Leung, Martin S ; Coleman, Dianne J


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a258345.pdf


Report Date : 09 Sep 1992


Pagination or Media Count : 23


Abstract : The metallo-organic solution deposition ((MOSD) or sol-gel) technique can be used for preparing lead zirconate titanate (PZT) ceramics with a wide range of compositions and crystal structures for electro-optical applications. Film morphology is affected by stoichiometry of the film, hydrolysis and polymerization of the sol-gel solution, and thermal treatment of the deposited material. The lattice parameter decreases with the amount of titanium in PZT in agreement with ceramic data. A slight initial excess of lead in the coating solution is found to improve film morphology. Unlike traditional powder ceramic processing techniques, MOSD permits the growth of small uniform grains that are conductive to achieving consistent electronic and optical properties. Our results show that the properties of films prepared by the MOSD process can be tailored to meet the needs of device applications.


Descriptors :   *ELECTROOPTICS , *CERAMIC MATRIX COMPOSITES , *FERROELECTRIC CRYSTALS , *LEAD ZIRCONATE TITANATES , POLYMERIZATION , MORPHOLOGY , DEPOSITION , POLYMERIC FILMS , HYDROLYSIS , CRYSTAL GROWTH


Subject Categories : Electrooptical and Optoelectronic Devices
      Ceramics, Refractories and Glass
      Laminates and Composite Materials


Distribution Statement : APPROVED FOR PUBLIC RELEASE