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Science 6 December 1991:
Vol. 254. no. 5037, pp. 1485 - 1487
DOI: 10.1126/science.254.5037.1485
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Articles

Polar Orientation of Dyes in Robust Multilayers by Zirconium Phosphate-Phosphonate Interlayers

H. E. KATZ 1, G. SCHELLER 1, T. M. PUTVINSKI 1, M. L. SCHILLING 1, W. L. WILSON 1, and C. E. D. CHIDSEY 1

1 AT& T Bell Laboratories, Murray Hill, NJ 07974

Polar orientation of molecules in solids leads to materials with potentially useful properties such as nonlinear optical and electrooptical activity, electrochromism, and pyroelectricity. A simple self-assembly procedure for preparing such materials is introduced that yields multiple polar dye monolayers on solid surfaces joined by zirconium phosphate-phosphonate interlayers. Second harmonic generation (SHG) shows that the multilayers have polar order that does not decrease with increasing numbers (up to a large number) of monolayers in the film. The inorganic interlayers, as determined by SHG, impart excellent orientational stability to the dye molecules, with the onset of orientational randomization above 150°C.

Submitted on July 18, 1991
Accepted on September 17, 1991


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Stepwise Formation of Multilayered Nanostructural Films from Macromolecular Precursors.
E. R. Kleinfeld and G. S. Ferguson (1994)
Science 265, 370-373
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