Characterization of Nanoparticle Based on the Power Spectrum Density of Dynamic Light Scattering

Author

Guobin, Liu ; Hui, Yang ; Gang, Zheng ; Yajing, Wang ; Yifeng, Yang

Author_Institution

Univ. of Shanghai for Sci. & Technol., Shanghai, China

Volume

1

fYear

2011

fDate

6-7 Jan. 2011

Firstpage

704

Lastpage

707

Abstract

We describe a new measurement suitable for processing dynamic light scattering data of nanoparticles in dispersion. The program by the Power Spectrum Density of the scattering light developed in VC++6.0 using a standard photon counting unit, a fast counting board and a PC is presented. The pulses from PMT are counted by Counting Board at a designed sample time. Then the Power Spectrum Density is calculated and the particles´ size is deduced with characteristic decay constant. The method is systematically tested using small polystyrene latex particles with a wide range of particle concentrations as well as different diameters in suspension.

Keywords

light scattering; nanoparticles; polymers; VC++6.0; characteristic decay constant; dynamic light scattering; nanoparticle; particle concentrations; particles size; polystyrene latex particles; power spectrum density; standard photon counting unit; suspension; Atmospheric measurements; Correlation; Light scattering; Particle measurements; Photonics; Power measurement; Counting Board; Dynamic Light Scattering; Nanoparticle Sizing; Power Spectrum Density;

fLanguage

English

Publisher

ieee

Conference_Titel

Measuring Technology and Mechatronics Automation (ICMTMA), 2011 Third International Conference on

Conference_Location

Shangshai

Print_ISBN

978-1-4244-9010-3

Type

conf

DOI

10.1109/ICMTMA.2011.178

Filename

5720881