Size Effort Of Nanoparticle

The study of nanoparticle is on recent developments. Ag- nanoparticle ,Cu-nanoparticle and Au-nanoparticle are talking about mostly.While size of particle be close to nanometer,Physical and Chemical properties and optical properties are different to block metal .Light scattering has proved to be one of the most powerful techniques for probing the properties of nanoparticles .More and more interests have been attracted for studing nanoparticle both experimentally and theoretically.The purpose of this paper is to study the relationship between light scattering of nanoparticle and nanoparticle's radius by Mie theory,and the size effort on dielectric function of nanoparticle .The main result :1,With the considering it is difficult to probe every optical spectrum of nanoparticle , we simulation the size effort which act on the spectrum of Ag-nanoparticle by computer: distribution of resonance ; size effort on the sharp of the resonance absorption spectrum ;to talk about the high of the resonance absorption spectrum following the radius of Ag-nanoparticle.2, The characteristic of the Au, Cu nanoparticles spectrum with same radius, and to explore that resonance absorption spectrum of different nanoparticles act in common.3, put forward the assumption which is a adjusting theory of dielectric function of Ag- nanoparticle , Cu-nanoparticle and Au-nanoparticle on the basis of KKE theory.The work provides a theoretical reference of the study of nano-materials the spectrum and size-effort on light absorption characteristics...