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J Am Chem Soc. 2018 Apr 11;140(14):4761-4764. doi: 10.1021/jacs.7b13638. Epub 2018 Apr 03.

Free-Standing Nanocrystalline Materials Assembled from Small Molecules.

Journal of the American Chemical Society

Tamar Wolf, Angelica Niazov-Elkan, XiaoMeng Sui, Haim Weissman, Ilya Bronshtein, Mark Raphael, H Daniel Wagner, Boris Rybtchinski

PMID: 29589749 DOI: 10.1021/jacs.7b13638

Abstract

We demonstrate a solution-based fabrication of centimeter-size free-standing films assembled from organic nanocrystals based on common organic dyes (perylene diimides, PDIs). These nanostructured films exhibit good mechanical stability, and thermal robustness superior to most plastics, retaining the crystalline microstructure and macroscopic shape upon heating up to 250-300 °C. The films show nonlinear optical response and can be used as ultrafiltration membranes. The macroscopic functional materials based on small molecules can be alternative or complementary to materials based on macromolecules.

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