AMORPHOUS FERROELECTRIC MATERIALS
UCLA Technology Available For Licensing

A variety of new amorphous ferroelectric materials are formed by a sol-gel process. This is accomplished at temperatures well below the temperatures at which crystallization occurs. Soluble transition metal complexes in organic solvents are used as precursors to ceramic films. These solutions may be spincast on essentially any substrate, conductor or nonconductor, crystalline or amorphous, transparent or opaque, including organic plastics. Hydrolysis and polycondensation occur in situ to deposit an amorphous ferroelectric film. Such films show P-E hysteresis loops and pyroelectric current, and are useable in electronic, opto-electronic and optical devices.

The invention allows fabrication, for the first time, of amorphous ferroelectric thin films on a variety of substrates that are suitable for all known metal oxide-based ferroelectric materials for both research and application purposes. This technology provides a technique for forming such films in processes at relatively low temperatures in comparison to those of other techniques. This will allow the manufacturer much greater freedom in the selection of materials compatible with processing of the ferroelectric materials for various device applications.

Reference: UCLA Case No. 1990-565 US Patent Number: 5,342,648

For additional technical details and current licensing
availability, please contact the following UCLA office:

UCLA Office of Intellectual Property
11000 Kinross Avenue, Suite #200
Los Angeles, CA 90095-7231
Tel: 310-794-0558 Fax: 310-794-0638
email: ncd@research.ucla.edu
Lead Inventor: John Mackenzie
UCLA Technologies Available for Licensing
http://www.research.ucla.edu/tech

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