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Photovoltaic Effect in Thin Ferroelectric Films

Published online by Cambridge University Press:  25 February 2011

Philip S. Brody ,
B. J. Rod ,
L. P. Cook  and
P. K. Schenck
Philip S. Brody
Affiliation:
Harry Diamond Laboratories, U.S. Army LABCOM, Adelphi, MD 20783
B. J. Rod
Affiliation:
Harry Diamond Laboratories, U.S. Army LABCOM, Adelphi, MD 20783
L. P. Cook
Affiliation:
National Institute of Standards and Technology, Gaithersburg, MD 20899
P. K. Schenck
Affiliation:
National Institute of Standards and Technology, Gaithersburg, MD 20899
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Abstract

Polarization-dependent photovoltaic currents are observed in continuously illuminated ferroelectric thin films under conditions of polarization reversal. Following reversal, an initial current rapidly decays to an essentially steady current, which then decays slowly with the current decreasing in proportion to the logarithm of elapsed time. These polarization-dependent currents are attributed to the action of internal fields on photocarriers where the fields result from the incomplete screening of the polarization field.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 243: Symposium G – Ferroelectric Thin Films II , 1991 , 27
Copyright
Copyright © Materials Research Society 1992

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References

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