Chemical structure and nonlinear optical properties of polar self-assembling films

Leiming Li; Eugene R. Zubarev; Brad A. Acker; Samuel I Stupp

doi:10.1021/ma010793p

Chemical structure and nonlinear optical properties of polar self-assembling films

Leiming Li, Eugene R. Zubarev, Brad A. Acker, Samuel I Stupp

Northwestern University

Research output: Contribution to journal › Article

15 Citations (Scopus)

Abstract

We report on the influence of molecular chemical structure on second harmonic activity in several homologous series of self-assembling short chain polymers containing both molecularly rigid and flexible segments and known to form supramolecular nanostructures. The second-order nonlinear optical susceptibility and physical structure of films formed by these molecules were investigated by second harmonic generation experiments and small-angle X-ray scattering. It was observed that all series of molecules formed polar films with a layered structure by self-assembly. The nonlinear susceptibilities were found to increase with the ratio of first hyperpolarizability to layer period in the Self-assembled films, further suggesting spontaneous polar order in these layers of supramolecular structures.

Original language	English
Pages (from-to)	2560-2565
Number of pages	6
Journal	Macromolecules
Volume	35
Issue number	7
DOIs	https://doi.org/10.1021/ma010793p
Publication status	Published - Mar 26 2002

ASJC Scopus subject areas

Materials Chemistry

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Li, L., Zubarev, E. R., Acker, B. A., & Stupp, S. I. (2002). Chemical structure and nonlinear optical properties of polar self-assembling films. Macromolecules, 35(7), 2560-2565. https://doi.org/10.1021/ma010793p

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