Growth Process of Novel Thin Films by Directed Self Organization of Nanoparticles

This work reports on the growth process of multilayer thin films based on layer by layer (LBL) deposition of engineered nanoparticles. The LBL thin films were constructed with zinc sulphide nanoparticles capped with a polyelectrolyte such as chitosan, and gold nanoparticles stabilized by electrostatic charges. The LBL process of self assembly of nanoparticle monolayers & subsequent monoparticulate layered sandwiched units were built on silanized substrates by repeating the self-organization process. The authors discuss tie linear growth of the layers upon multiple dipping, the surface morphology of the obtained films, and the I-V characteristics with increasing film thicknesses.