Assembly of CdS Nanoparticles in Patterned Structures by a Novel Ion-Entrapment Process in Thermally Evaporated Fatty Acid Films

Saikat Mandai, Chinmay Damle, S. R. Sainkar, Murali Sastry

Research output: Contribution to journalArticleResearchpeer-review

9 Citations (Scopus)

Abstract

The formation of cadmium sulfide nanoparticle assemblies in a patterned manner on suitable substrates is described. The protocol for realizing such structures comprises the following steps. In the first step, patterned films of a fatty acid are thermally evaporated onto solid supports using suitable masks (e.g., a transmission electron microscope grid). Thereafter, the fatty acid film is immersed in cadmium sulfate solution and Cd 2+ ions entrapped in the lipid matrix by electrostatic complexation with the carboxylate ions of the fatty acid molecules. The final step involves reaction of the entrapped Cd 2+ ions with Na 2S, leading to the in situ generation of cadmium sulfide nanoparticles within the patterned lipid matrix. This approach shows promise for generating patterned nanoparticle assemblies of different chemical compositions.

Original languageEnglish
Pages (from-to)281-285
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Volume1
Issue number3
DOIs
Publication statusPublished - 2001
Externally publishedYes

Keywords

  • Cds nanoparticles
  • Ion-entrapment process
  • Patterned nanoparticle assemblies

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