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Title: Oriented niobate ferroelectric thin films for electrical and optical devices

Patent ·
OSTI ID:873636
;

Sr.sub.x Ba.sub.1-x Nb.sub.2 O.sub.6, where x is greater than 0.25 and less than 0.75, and KNbO.sub.3 ferroelectric thin films metalorganic chemical vapor deposited on amorphous or cyrstalline substrate surfaces to provide a crystal axis of the film exhibiting a high dielectric susceptibility, electro-optic coefficient, and/or nonlinear optic coefficient oriented preferentially in a direction relative to a crystalline or amorphous substrate surface. Such films can be used in electronic, electro-optic, and frequency doubling components.

Research Organization:
Northwestern Univ., Evanston, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG02-85ER45209
Assignee:
Northwestern University (Evanston, IL)
Patent Number(s):
6,208,453
Application Number:
09/050,633
OSTI ID:
873636
Resource Relation:
Patent File Date: 1998 Mar 30
Country of Publication:
United States
Language:
English

References (9)

Preparation of Strontium Barium Niobate by Sol-Gel Method journal June 1992
Electro‐optic characterization of ion beam sputter‐deposited KNbO 3 thin films journal May 1991
Sol-gel processing of strontium-barium niobate ferroelectric thin film journal May 1990
Nonlinear optical properties of textured strontium barium niobate thin films prepared by metalorganic chemical vapor deposition journal April 1995
Growth of (001)-Oriented Sbn Thin Films by Solid Source MOCVD journal January 1993
Growth studies of ferroelectric oxide layers prepared by organometallic chemical vapor deposition journal January 1991
Electro-Optic Materials by Solid Source MOCVD journal January 1993
Ferroelectric properties of thin strontium barium niobate films journal June 1985
Development And Modification Of Photorefractive Properties In The Tungsten Bronze Family Crystals journal May 1987

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oriented
niobate
ferroelectric
films
electrical
optical
devices
sr
1-x
nb
25
75
knbo
metalorganic
chemical
vapor
deposited
amorphous
cyrstalline
substrate
surfaces
provide
crystal
axis
film
exhibiting
dielectric
susceptibility
electro-optic
coefficient
nonlinear
optic
preferentially
direction
relative
crystalline
surface
electronic
frequency
doubling
components
vapor deposited
chemical vapor
substrate surface
optical device
optical devices
metalorganic chemical
amorphous substrate
substrate surfaces
direction relative
organic chemical
nonlinear optic
oriented niobate
niobate ferroelectric
frequency doubling
films metalorganic
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