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Uv-Curable Epoxy Based Second Order Nonlinear Optical Material

Published online by Cambridge University Press:  25 February 2011

Ru Jong Jeng ,
Yong Ming Chen ,
Braja K. Mandal ,
Jayant Kumar  and
Sukant K. Tripathy
Ru Jong Jeng
Affiliation:
Departments of Chemistry and Physics, Lowell, MA 01854.
Yong Ming Chen
Affiliation:
University of Massachusetts at Lowell, Lowell, MA 01854.
Braja K. Mandal
Affiliation:
Departments of Chemistry and Physics, Lowell, MA 01854.
Jayant Kumar
Affiliation:
University of Massachusetts at Lowell, Lowell, MA 01854.
Sukant K. Tripathy
Affiliation:
Departments of Chemistry and Physics, Lowell, MA 01854.
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Abstract

Epoxy based material incorporating 4-(4'-nitrophenylazo) phenylamine has been synthesized and subsequently functionalized with cinnamoyl groups. These materials can be easily solution-processed into thin films by spin-coating. The uncrosslinked polymer has excellent thermal and linear optical properties. Glass transition temperature of 115°C and degradation temperature (air) of 278°C were recorded.

This material exhibits large second order nonlinear optical (NLO) effects subsequent to poling. In a poled film sample, second harmonic generation coefficient, d33, of 34 pm/V was observed at 1.06 μm. Crosslinking is brought about by exposure to UV radiation at 254 nm wavelength. In a poled and crosslinked film sample, a d33 of 22 pm/V was observed. This d33 value is less than the d33 value of the poled and uncrosslinked film sample due to photo-induced cis-trans isomerization and partial degradation of the NLO chromophores. Nevertheless, the poled and crosslinked film shows a much more stable second order response at ambient conditions compared to the poled film which has not been crosslinked.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 247: Symposium N – Electrical, Optical, and Magnetic Properties of Organic Solid State Materials , 1992 , 111
Copyright
Copyright © Materials Research Society 1992

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References

REFERENCES

1. Li, D., Yang, J., Ye, C., Ratner, M., Wong, G., and Marks, T., in Nonlinear Optical and Electroactive Polymers. edited by Prasad, P. and Ulrich, D., (Plenum Press, New York, 1988), p. 217.Google Scholar
2. Mandai, B., Chen, Y., Jeng, R., Takahashi, T., Huang, J., Kumar, J. and Tripathy, S., Eur. Polym. J., 27 735 (1991).Google Scholar
3. Mortazavi, M. A., Knoesen, A., Kowell, S. T., Higgins, B. G. and Dienes, A., J. Opt. Soc. Am. B6, 733 (1989).Google Scholar
4. Hampsch, H. L., Yang, J., Wong, G. K., and Torkelson, J. M., Macromolecules, 23, 3640 (1990).Google Scholar
5. Eich, M., Sen, A., Looser, H., Bjorklund, G., Wwalen, J., Twieg, R., and Yoon, D., J. Appl. Phys. 66, 2559 (1989).Google Scholar
6. Eich, M., Reck, B., Yoon, D. Y., Willson, C. G. and Bjorklund, G. C., J. Appl. Phys. 66 3241 (1989).Google Scholar
7. Wu, J. W., Valley, J. F., Ermer, S., Brinkley, E. S., Kenney, J. T., Lipscomb, G. F., and Lytel, R., Appl. Phys. Lett., 58, 225, (1991).Google Scholar
8. Mandai, B., Kumar, J., Huang, J., and Tripathy, S., Makromol. Chem., Rapid Commun. 12, 63 (1991).Google Scholar
9. Mandai, B., Kumar, J., and Tripathy, S., PROC. Materials Research Society (MRS), Pittsburgh, 61 (1990).Google Scholar
10. Mandai, B., Jeng, R., Kumar, J., and Tripathy, S., Makromol. Chem. Rapid Commun, to be published.Google Scholar
11. Lee, H., and Neville, K., Handbook of Epoxy Resins, (McGraw-Hill Book Co., New York, 1967), p. 4–22.Google Scholar
12. Chen, M., Yu, L., Dalton, L., Shi, Y., and Steier, W., Macromolecules 24, 5421 (1991).Google Scholar