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    • RAKTIM J SARMAH

      Articles written in Bulletin of Materials Science

    • Volume 45 All articles Published: 19 October 2022 Article ID 0208

      Growth of monolayer and trilayer of gold nanoparticles attached octadecanethiol films on hydrophilic silicon surface using Langmuir–Blodgett method

      SURESH KUMAR RAKTIM J SARMAH SARATHI KUNDU

      More Details Abstract Fulltext PDF

      Gold nanoparticles (AuNPs) are formed below the octadecanethiol (ODT) Langmuir monolayer and the nanoparticles attached ODT monolayer is deposited on hydrophilic silicon substrate using the conventional Langmuir– Blodgett (LB) technique. X-ray reflectivity and atomic force microscopy analysis confirm that effectively monolayer- and trilayer-like structures are developed on the solid surface for single up stroke and multiple numbers of up-down-up cyclesof the substrate through the ODT layer. Transmission electron microscopy provides the size distribution of the deposited nanoparticles, while Fourier transform infrared study confirms the deposition of ODT layer and leaching of some thiol molecules due to multiple up/down strokes of the substrate. Effective growth of only single and double layers of AuNPs is possible on hydrophilic solid surface by the conventional LB method.

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