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 language | English |
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Pages (from-to) | P6251-P6255 |
Journal | Materials Research Society Symposium - Proceedings |
Volume | 648 |
Publication status | Published - 2001 |
Externally published | Yes |
Event | Growth, Evolution and Properties of Surfaces, Thin Films and Self-Organized Strutures - Boston, MA, United States Duration: 2000 Nov 27 → 2000 Dec 1 |
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering