Sorry, you need to enable JavaScript to visit this website.

Structure of Nanocomposite films of CdS nanoparticles in a polymer matrix

TitoloStructure of Nanocomposite films of CdS nanoparticles in a polymer matrix
Tipo di pubblicazionePresentazione a Congresso
Anno di Pubblicazione2005
AutoriDi Luccio, Tiziana, Nickel B., Antolini F., Pentimalli Marzia, and Tapfer Leander
Conference NameMaterials Research Society Symposium Proceedings
Conference LocationBoston, MA
Parole chiaveCadmium sulfide, Nanostructured materials, Particle size analysis, Plastic films, Polymer solutions, Thermal annealing
Abstract

A thiolate precursor was dispersed in a polymer solution and a precursor/polymer film was obtained by casting. Thermal annealing of the precursor/polymer film leads to the formation of a nanocomposite of nanometer-sized CdS dispersed in the polymer (thermolytic process). Different polymers were used as matrix material; in particular we employed a cyclo-olefin copolymer for its good optical properties and extremely low water absorption. After annealing with a temperature between 230 and 250°C in vacuum (pressure of about 6×10-3 mbar) the CdS nanoparticles are found to be crystalline with a diameter of about 2nm in size. The nanoparticle size can be increased up to 15nm by annealing at higher temperatures (300°C). The details of the structural properties of the nanocomposite films have been investigated by small and wide angle x-ray scattering (SAXS and WAXS, respectively). A simple dependence of the nanoparticle dimensions on the annealing temperature was found. Furthermore, SAXS measurements indicate that the separation between the nanoparticles compares with their diameter. © 2005 Materials Research Society.

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-28844444594&partnerID=40&md5=1b258caf629deb903f5cff0889e41d15
Citation KeyDiLuccio2005457