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BaTiO3 Thin Films for Electro-optic and Non-linear Optical Applications

Published online by Cambridge University Press:  10 February 2011

B. A. Block  and
B. W. Wessels
B. A. Block
Affiliation:
Northwestern University, Department of Materials Science and Engineering and the Materials Research Center, Evanston, IL 60208
B. W. Wessels
Affiliation:
Northwestern University, Department of Materials Science and Engineering and the Materials Research Center, Evanston, IL 60208
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Abstract

Er-doped BaTiO3 thin films have been investigated as a candidate for an optically active waveguide medium. Epitaxial layers were prepared by metal-organic chemical vapor deposition at low pressure. The properties of the characteristic Er3+ luminescence transition at 0.8 eV have been investigated for epitaxial Er doped BaTiO3 thin films for various Er concentrations. The photoluminescent intensity was found to increase by a factor greater than 500 when the doping level was increased from 1 × 1020 cm−3 to 2.2 × 1021cm−3, indicating that concentration quenching was not significant at the highest doping levels. A complex emission spectra was observed and was attributed to the multi-site substitution of Er in BaTiO3. Transient decay measurements revealed a 7 ms radiative lifetime for the 0.80 eV transition that was independent of concentration.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 415: Symposium BB – Metal-Organic Chemical Vapor Deposition of Electronic Ceramics II , 1995 , 175
Copyright
Copyright © Materials Research Society 1996

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References

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