返回Google圖書搜尋

Optical Property Trends in Metal/Polymer (Ag/PVDF) Nanocomposites

其他書名	A Computational Study
出版	University of Victoria, 2011
URL	http://books.google.com.hk/books?id=V6PCoQEACAAJ&hl=&source=gbs_api

註釋Metal-polymer nanocomposite materials were found to have highly tunable optical properties. Density functional theory-based calculations were employed to study trends in Ag/polyvinylidene fluoride nanocomposite optical properties. The frequency-dependent imaginary part of the dielectric constant was calculated from dipolar interband transitions. The metallic inclusion introduced both occupied and unoccupied states into the large polymer band gap. Thus, higher inclusion volume fractions generally led to stronger composite optical response. Spectra from monodisperse systems correlated well with nanoparticle quantum confinement models. A polydisperse system exhibited optical properties that correlated best with interparticle distances along the field direction. Nanodisk and nanorod-shaped inclusions had tunable response from field polarization, aspect ratio, crystallographic projections, and nanorod end-cap morphology.