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    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/031/03/0277-0282

    • Keywords

       

      Gold nanoparticles; 2D array; spin-coating; self-assembly; TEM; AFM.

    • Abstract

       

      A method of preparing large area patterned 2D arrays of uncapped gold (Au) nanoparticles has been developed. The pattern has been formed using self-assembly of uncapped Au nanoparticles. The Au nanoparticles were synthesized via toluene/water two phase systems using a reducing agent and colloidal solution of Au nanoparticles was produced. These nanoparticles have been prepared without using any kind of capping agent. Analysis by TEM showed discrete Au nanoparticles of 4 nm average diameter. AFM analysis also showed similar result. The TEM studies showed that these nanoparticles formed self-assembled coherent patterns with dimensions exceeding 500 nm. Spin coating on silicon substrate by suitably adjusting the speed can self-assemble these nanoparticles to lengths exceeding 1 𝜇m.

    • Author Affiliations

       

      Anindya Das1 Soma Das1 A K Raychaudhuri1

      1. DST Unit for Nanoscience, S.N. Bose National Centre for Basic Sciences, Kolkata 700 098, India

    • Dates

       
      Published
      June 2008

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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