| Autor: |
Aleksei N. Kolodin, Irina Victorovna Korostova, Mikhail M. Syrokvashin, V. S. Sulyaeva |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 629:127375 |
| ISSN: |
0927-7757 |
| DOI: |
10.1016/j.colsurfa.2021.127375 |
| Popis: |
Au@AOT composites based on the diluted concentrates of the metal nanoparticle organosols were obtained by the chemical bath deposition method. The polystyrene with the smooth surface was applied as the substrates. The Au particle sorption time was varied in the range of 0–6 days. The optimal surfactant concentration in the sol (4.2 10−3 M) allowed one to carry out the sorption of particles at the fixed deposition rate (1.4 particles·μm−2·day−1). It was experimentally shown that the surface and optical properties of Au@AOT films depended on both the numerical concentration and the linear dimensions of Au particles. The sorption time variation allowed one to obtain the samples with the adjustable root-mean-square roughness (from 1.9 ± 0.3 to 9.6 ± 0.8 nm), the contact angle (from 95 ± 3 to 31 ± 3˚) and the absorption intensity (from 0 to 0.115). All samples exhibited a plasmon effect and maintained stability in the working liquid medium. The synthesized Au@AOT composites could be used for the optical sensor applications. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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Full Text from ScienceDirect