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Dielectric Study of a Photo-Ckosslinkable Nonlinear Optical Polymer

Published online by Cambridge University Press:  25 February 2011

J. I. Chen,
R. A. Moody,
Y. M. Chen,
J. Y. Lee,
S. K. Sengupta,
J. Kumar and
S. K. Tripathy
J. I. Chen
Affiliation:
Departments of Chemistry and Physics, University of Massachusetts at Lowell, Lowell, MA 01854.
R. A. Moody
Affiliation:
University of Massachusetts at Lowell, Lowell, MA 01854.
Y. M. Chen
Affiliation:
University of Massachusetts at Lowell, Lowell, MA 01854.
J. Y. Lee
Affiliation:
Departments of Chemistry and Physics, University of Massachusetts at Lowell, Lowell, MA 01854.
S. K. Sengupta
Affiliation:
Departments of Chemistry and Physics, University of Massachusetts at Lowell, Lowell, MA 01854.
J. Kumar
Affiliation:
University of Massachusetts at Lowell, Lowell, MA 01854.
S. K. Tripathy
Affiliation:
Departments of Chemistry and Physics, University of Massachusetts at Lowell, Lowell, MA 01854.
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Abstract

Temperature and frequency dependent measurements are utilized to study the relaxation behavior of a photocrosslinking nonlinear optical (NLO) material based on a polyvinylcinnamate (PVCN) polymer matrix. 3-cinnamoyloxy-4-[4-(N, N-diethylamino)-2-cinnamoyloxy phenyl azo] nitrobenzene (CNNB-R) is used as a functionalized NLO active dye. Measurements of dielectric properties of PVCN doped with different levels of CNNB-R have been performed. NLO dye molecules were bonded to the host polymer by ultraviolet irradiation. Measurements were carried out from 50 to 200 °C and a frequency range of 30 Hz to 1 MHz. The effects of dye content and UV irradiation on the dielectric response are discussed.

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References

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