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Bridged Polysilsesquioxanes with Improved Second Order Nonlinear Optical Properties and Stability

Published online by Cambridge University Press:  10 February 2011

S. T. Hobson
Affiliation:
Drug Assessment Division, U. S. Army Med. Res. Inst. of Chem. Def., APG,MD, 21010-5405*
J. Zieba
Affiliation:
Department of Chemistry SUNY Buffalo, Buffalo, NY 14260-3000
P. N. Prasad
Affiliation:
Department of Chemistry SUNY Buffalo, Buffalo, NY 14260-3000
K. J. Shea
Affiliation:
Department of ChemistryUniversity of California, Irvine, California, 92697-2025
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Abstract

We report the synthesis and sol-gel polymerization of 4-nitro-N,N-bis[(3- triethoxysilyl)propyl]aniline 1. An efficient synthesis of the monomer was developed by the hydrosilylation of N, N-diallyl-4-nitroaniline. Optical quality thin films were synthesized by spin coating an n-butanol solution of 1 using formic acid as catalyst and source of water. We improved the temporal stability of the NLO signal from films prepared from 4-nitro-N,N-bis[(3-triethoxysilyl)propyl]aniline by increasing the intensity of the poling field and extending the heating period during the poling/curing stage. By Maker fringe analysis, a X(2) value of 9 × 10−8 esu was measured for these polysilsesquioxanes. If one assumes that the major component of the NLO effect is along the z-axis, the X(2) value corresponds to a d33 coefficient of 18.9 pm/V and a r33 value of 4.7 pm/V.

Type
Research Article
Copyright
Copyright © Materials Research Society 1999

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References

REFERENCES

1 Prasad, P. N. in Contemporary Nonlinear Optics Agrawal, G. P.; Boyd, R. W.; Eds. Quantum Electronics--Principles and Applications, Academic Press, Boston, 1992; Chapter 7.Google Scholar
2 Zyss, J.; Chemla, D. S. in Nonlinear Optical Properties of Organic Molecules and Crystals Chemla, D. S.; Zyss, J.; Eds. Academic Press, New York, 1987; 23 Google Scholar
3 a Burzynski, R.; Prasad, P. N. in Sol Gel Optics: Processing and Applications; Klein, L. C., Ed.; Kluwar Academic Publishers, 1994; pp. 417450. b Levy, D., Esquivia, L. Adv. Mater. 1995, 7, 120.Google Scholar
4 Peng, Z.; Yu, L. Macromolecules 1994, 27, 2638 Google Scholar
5 Meyeriux, R.; Lemomte, J.; Tapolsky, G. Proc. SPIE 1991, 1560, 454 Google Scholar
6 Oviatt, H. W. Jr.; Shea, K. J.; Lairo, S.; Shi, T.; , Dalton, Steier, W. H.; Dalton, L. R. Chem. Mater. 1995, 7, 493.Google Scholar
7 Measured by Electric Field Induced Second Harmonic Generation EFISH, see Ulman, A.; Willand, C. S.; Kohler, W.; Robello, D. R.; Williams, D.J.; Handley, L. J Am. Chem. Soc. 1990, 112, 7083.Google Scholar
8 Tam, W.; Cheng, L.I. Bierlein, J. D.; Cheng, L. K.; Wang, Y.; Feiring, A. E.; Meredith, G. R.; Eaton, D. F.; Calabrese, J. C.; Rikken, G. L. J. A. in Materials for Nonlinear Optics : Chemical Perspectives; Marder, S. R.; Sohn, J. E., editor; Stucky, G. D. eds. ACS symposium series 455; American Chemical Society: Washington, DC, 1991; pp. 158160.Google Scholar
9 Perrin, D. D., Armarega, W. L. F. Purification of Laboratory Chemicals; Pergamon Press: Oxford, 1988.Google Scholar
10 Hobson, S. T. and Shea, K. J. Chem. Mater. 1997, 9, 616.Google Scholar
11 Mortazavi, M. A.; Knoesen, A.I. Kowel, S. T.; Higgins, B. G.; Dienes, A. J. Opt. Soc. Am. B. 1988, 6, 733.Google Scholar
12 Small, J. H. Ph.D. Dissertation, University of California, Irvine, 1995, p 139.Google Scholar
13 Oviatt, H. W. Ph.D. Dissertation, University of California, Irvine, 1995, Ch 8.Google Scholar
14 Gibbons, W. M.; Grasson, M. K.; O'Brien, M. K.; Shannon, P. J.; Sun, S. T. Macromolecules 1994, 27, 771.Google Scholar
15 Marciniec, B.; Gulinski, J.; Urbaniak, W.; Kometka, Z. Comprehensive Handbook on Hydrosilylation, Marciniec, B., Ed. Pergamon, Oxford.Google Scholar
16 Hampsch, J. M.; Torkelson, J. M.; Bethke, S. J.; Grubb, S. G. J. Appl. Phys. 1990, 67, 1037.Google Scholar
17 Stahelin, M.; Walsh, C. A.; Burland, D. M.; Miller, R. D.; Twieg, R. J.; Volksen, W. J. Appl. Phys. 1993, 73, 8471.Google Scholar
18 Suziki, A.; Matsuoka, Y. J. Appl. Phys. 1995, 77, 965.Google Scholar
19 Lebeau, B.; Bresselet, S.; Zyss, J.; Sanchez, C. Chem. Mater. 1997, 9, 1012.Google Scholar
20 dl I for quartz = 0.81 × 10-9 esu.Google Scholar
21 Saleh, G. E. A.; Teich, M. C. Fundamentals of Photonics; John Wiley and Sons, Inc.: New York, 1991; p 780.Google Scholar