Dubas, Anastasiia L. and Tameev, Alexey R. and Zvyagina, Alexandra I. and Ezhoy, Alexander A. and Ivanov, Vladimir K. and Koenig, Burkhard and Arslanov, Vladimir V. and Gribkoya, Oxana L. and Kalinina, Maria A. (2017) Ultrathin Polydiacetylene-Based Synergetic Composites with Plasmon-Enhanced Photoelectric Properties. ACS APPLIED MATERIALS & INTERFACES, 9 (50). pp. 43838-43845. ISSN 1944-8244,
Full text not available from this repository. (Request a copy)Abstract
Fabricating plasmon-enhanced organic nanomaterials with technologically relevant supporting architectures on planar solids remains a challenging task in the chemistry of thin films and interfaces. In this work, we report a bottom-up assembly of ultrathin layered composites of conductive polymers with photophysical properties enhanced by gold nanoparticles. The polydiacetylene component was formed by photopolymerization of a catanionic mixture of pentacosadiynoic surfactants on a surface of citrate-stabilized gold hydrosol monitored by a fiber optic spectrometer. Microscopic examination of the 3 nm thick solid-immobilized film showed that gold nanoparticles (AuNPs) do not aggregate within the monolayer upon polymerization. This polydiacetylene/AuNPs monolayer was coupled with 60 nm thick polyaniline-based layer deposited atop. The resulting polymer composite with an integrated 4-stripe electric cell showed nonadditive electric behavior due to the formation of electron hole pairs with increased charge carrier mobility at the interface between the polymer layers. Under visible light irradiation of the composite film, a plasmonic effect of the gold nanoparticles was observed at the onset of photoconductivity, although neither polydiacetylene nor the polyaniline component alone are photoconductive polymers. The results indicate that our bottom-up strategy can be expanded to design other plasmon-enhanced ultrathin polymer composites with potential applications in optoelectronics and photovoltaics.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | LANGMUIR-BLODGETT-FILMS; DIACETYLENE MONOCARBOXYLIC ACID; COATED GOLD NANOPARTICLES; AIR-WATER-INTERFACE; RAMAN-SPECTROSCOPY; SOLAR-CELLS; OPTICAL-PROPERTIES; POLYMER BRUSHES; MONOLAYERS; POLYANILINE; polydiacetylene; gold nanoparticles; ultrathin films; Langmuir-Blodgett technique; plasmon coupling; plasmon-enhanced properties; photoconductivity; photovoltaics |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Organische Chemie Chemistry and Pharmacy > Institut für Organische Chemie > Lehrstuhl Prof. Dr. Burkhard König |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Dec 2018 13:18 |
| Last Modified: | 20 Feb 2019 08:00 |
| URI: | https://pred.uni-regensburg.de/id/eprint/1677 |
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