Synthesis of light-diffracting assemblies from microspheres and nanoparticles in droplets on a superhydrophobic surface

Vinayak Rastogi, Sonia Melle, Oscar G. Calderón, Antonio Garcia, Manuel Marquez, Orlin D. Velev

Research output: Contribution to journalArticle

98 Scopus citations

Abstract

A study was conducted to demonstrate a technique for synthesizing of light-diffracting assemblies from microspheres and nanoparticles (NP) in droplets of a superhydrophobic surface. It was demonstrated that the results of the process are near-spherical and spheroidal supraballs in dry environments. It was observed that droplets of 5.0 μL are dispensed on a superhydrophobic substrate coated with low-density polyethylene (LDPE). LDPE was selected for conducting investigations, as it was flexible, naturally hydrophobic, and cost-effective. The surfaces were generated by coating LDPE sheets with a solution of LDPE pellets in a mixture xylene and methyl ethyl ketone. It was observed that the LDPE substrate contact angles in the range of 140°-150°.

Original languageEnglish (US)
Pages (from-to)4263-4268
Number of pages6
JournalAdvanced Materials
Volume20
Issue number22
DOIs
StatePublished - Nov 18 2008

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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