Enhanced Second Order Nonlinear Optical Susceptibilities in Ionically Self-Assembled Films Incorporating Dianionic Molecules

Abstract

Ionically self-assembled monolayer (ISAM) films have been recently shown to spontaneously produce noncentrosymmetric ordering that gives rise to a substantial second order nonlinear optical (NLO) response. Typically, the ISAM films for NLO response are an assemblage of bilayers of oppositely charged polymers whose thickness can be controlled through variation of pH and ionic strength of the immersion solutions. Here, we study the effects of replacing the NLO-active polymer layers with layers of dianionic molecules. Films fabricated exclusively using polyelectrolytes contain some fraction of both randomly oriented and anti-parallel oriented chromophores. The incorporation of dianionic molecules within the ISAM films affords greater χ(2) due to increased net polar orientation of the chromophores.

This is a preview of subscription content, access via your institution.

References

  1. 1.

    G. Decher, J. D. Hong, and J. Schmitt, Thin Solid Films 210, 831 (1992).

    Article  Google Scholar 

  2. 2.

    G. Decher, Science 277, 1232 (1997).

    CAS  Article  Google Scholar 

  3. 3.

    J. R. Heflin, C. Figura, D. Marciu, Y. Liu, and R. O. Claus, SPIE Proc. 3147, 10 (1997); Appl. Phys. Lett. 74, 495 (1999).

    CAS  Article  Google Scholar 

  4. 4.

    Y. Lvov, S. Yamada, and T. Kunitake, Thin Solid Films 300, 107 (1997).

    CAS  Article  Google Scholar 

  5. 5.

    X. Wang, S. Balasubramanian, L. Li, X. Jiang, D. Sandman, M. F. Rubner, J. Kumar, and S. K. Tripathy, Macromol. Rapid Commun. 18, 451 (1997).

    Article  Google Scholar 

  6. 6.

    K. M. Lenahan, Y. Wang, Y. Liu, R. O. Claus, J. R. Heflin, D. Marciu, and C. Figura, Adv. Mater. 10, 853 (1998).

    CAS  Article  Google Scholar 

  7. 7.

    M. J. Roberts, G. A. Lindsay, W. N. Herman, and K. J. Wynne, J. Am. Chem. Soc. 120, 11202 (1998).

    CAS  Article  Google Scholar 

  8. 8.

    C. Figura, P. J. Neyman, D. Marciu, C. Brands, M. A. Murray, S. Hair, M. B. Miller, R. M. Davis, and J. R. Heflin. MRS Proc. Vol. 598, BB4.9.1–6 (2000).

    Google Scholar 

  9. 9.

    C. Figura, P. J. Neyman, D. Marciu, C. Brands, M. A. Murray, S. Hair, R. M. Davis, M. B. Miller, and J. R. Heflin, SPIE Proc. Vol. 3939, 214–222 (2000).

    CAS  Article  Google Scholar 

Download references

Author information

Affiliations

Authors

Corresponding author

Correspondence to P. J. Neyman.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Neyman, P.J., Guzy, M.T., Shah, S. et al. Enhanced Second Order Nonlinear Optical Susceptibilities in Ionically Self-Assembled Films Incorporating Dianionic Molecules. MRS Online Proceedings Library 660, 830 (2000). https://doi.org/10.1557/PROC-660-JJ8.30

Download citation