Stoeter, Matthias and Biersack, Bernhard and Rosenfeldt, Sabine and Leitl, Markus J. and Kalo, Hussein and Schobert, Rainer and Yersin, Hartmut and Ozin, Geoffrey A. and Foerster, Stephan and Breu, Josef (2015) Encapsulation of Functional Organic Compounds in Nanoglass for Optically Anisotropic Coatings. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 54 (16). pp. 4963-4967. ISSN 1433-7851, 1521-3773
Full text not available from this repository. (Request a copy)Abstract
A novel approach is presented for the encapsulation of organic functional molecules between two sheets of 1nm thin silicate layers, which like glass are transparent and chemically stable. An ordered heterostructure with organic interlayers strictly alternating with osmotically swelling sodium interlayers can be spontaneously delaminated into double stacks with the organic interlayers sandwiched between two silicate layers. The double stacks show high aspect ratios of >1000 (typical lateral extension 5000nm, thickness 4.5nm). This newly developed technique can be used to mask hydrophobic functional molecules and render them completely dispersible in water. The combination of the structural anisotropy of the silicate layers and a preferred orientation of molecules confined in the interlayer space allows polymer nanocomposite films to be cast with a well-defined orientation of the encapsulated molecules, thus rendering the optical properties of the nanocoatings anisotropic.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | LAYERED MATERIALS; POLARIZED-LIGHT; THIN-FILMS; ORIENTATION; NANOPLATELETS; ABSORPTION; MOLECULES; GROWTH; DYES; delamination; encapsulation; host compounds; layered materials; organic-inorganic hybrid composites |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry III - Physical Chemistry (Molecular Spectroscopy and Photochemistry) > Prof. Dr. Hartmut Yersin |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 22 Jul 2019 08:35 |
| Last Modified: | 22 Jul 2019 08:35 |
| URI: | https://pred.uni-regensburg.de/id/eprint/5642 |
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