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Deposition of Strontium Barium Niobate Thin Films by Metal-Organic Chemical Vapor Deposition and Their Nonlinear Optical Properties

Published online by Cambridge University Press:  15 February 2011

M.J. Nystrom ,
B.W. Wessels ,
D.A. Neumayer ,
T.J. Marks ,
W.P. Lin  and
G.K. Wong
M.J. Nystrom
Affiliation:
Department of Materials Science and Engineering, Materials Research Center Northwestern University, Evanston, IL 60208
B.W. Wessels
Affiliation:
Department of Materials Science and Engineering, Materials Research Center Northwestern University, Evanston, IL 60208
D.A. Neumayer
Affiliation:
Department of Chemistry, Materials Research Center Northwestern University, Evanston, IL 60208
T.J. Marks
Affiliation:
Department of Chemistry, Materials Research Center Northwestern University, Evanston, IL 60208
W.P. Lin
Affiliation:
Department of Physics and Astronomy, Materials Research Center Northwestern University, Evanston, IL 60208
G.K. Wong
Affiliation:
Department of Physics and Astronomy, Materials Research Center Northwestern University, Evanston, IL 60208
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Abstract

Single phase, highly textured strontium barium niobate (SBN) thin films were deposited by low pressure metal-organic chemical vapor deposition on both crystalline and amorphous substrates. The metal precursors employed were niobium pentaethoxide as well as barium and strontium (hexafluoroacetylacetonate)2•tetraglyme. SBN thin films with compositions across the entire solid solution range were deposited. The nonlinear optical properties of the SBN films were also measured. Nonlinear optical coefficients approaching bulk values were obtained for as-deposited oriented films. The room temperature, effective second-order nonlinear coefficient was 3.0 pm/V. Films with the highest degree of crystalline perfection had the largest effective nonlinear coefficient. The second harmonic intensity was strongly temperature dependent with a maximum at the ferroelectric transition.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 361: Symposium I2 – Ferroelectric Thin Films IV , 1994 , 167
Copyright
Copyright © Materials Research Society 1995

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References

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