Fabrication of multilayer films using a spinning process

Jinhan Cho, Kookheon Char, Jong Dal Hong, Ki Bong Lee

Research output: Contribution to journalConference article

Abstract

We introduce a method to build up organic/organic and organic/inorganic multilayer films composed of cationic poly(allylamine hydrochloride) (PAH) and negatively charged poly(sodium 4-styrenesulfonate) (PSS) or inorganic cadmium sulfide (CdS) nanoparticles using a spinning process. Since the deposition of each layer is made at a high spinning speed, the adsorption time for the formation of a homogeneous thin layer takes only 8 to 15 seconds. The adsorbed film thickness per bilayer can be easily controlled from about 5Å to 40Å by varying the spinning speed (Ω) and the mole concentration of polyelectrolytes. We also demonstrated with X-ray reflectivity that the alternating organic/inorganic ultrathin films fabricated by the spin SA process retain highly ordered internal structure in comparison with those prepared by the conventional SA process.

Original languageEnglish
Pages (from-to)P6251-P6255
JournalMaterials Research Society Symposium - Proceedings
Volume648
Publication statusPublished - 2001
EventGrowth, Evolution and Properties of Surfaces, Thin Films and Self-Organized Strutures - Boston, MA, United States
Duration: 2000 Nov 272000 Dec 1

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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