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.
|Publication status||Published - 2005|
|Event||2004 Materials Research Society Fall Meeting - , United States|
Duration: 1 Jan 2005 → …
|Conference||2004 Materials Research Society Fall Meeting|
|Period||1/1/05 → …|
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
Di Luccio, T., Nickel, B., Antolini, F., Pentimalli, M., & Tapfer, L. (2005). Structure of Nanocomposite films of CdS nanoparticles in a polymer matrix. Paper presented at 2004 Materials Research Society Fall Meeting, United States.