Date of Graduation
8-2014
Document Type
Thesis
Degree Name
Master of Science in Microelectronics-Photonics (MS)
Degree Level
Graduate
Department
Microelectronics-Photonics
Advisor/Mentor
Singh, Surendra P.
Committee Member
Manasreh, Omar O.
Second Committee Member
Chen, Jingyi
Third Committee Member
Vickers, Kenneth G.
Keywords
Dynamic Light Scattering; Nanorod Sizing; Nanosphere Sizing
Abstract
The Dynamic Light Scattering Technique was used to determine the size, shape and diffusion coefficient of nanoparticle. The intensity auto correlation functions of light scattered by particles in a solution were measured by using a photomultiplier tube and analyzed to get the relaxation rates for decay of intensity correlations, which correspond to the diffusion constants pertaining to the motion of the particle. In the case of nanorods there are two types of motion - translational and rotational. By dis-entangling the relaxation rates, corresponding to these two types of motion, the shape and size of nanoparticle could be characterized. These experiments, though limited in scope, demonstrate the promise of dynamical light scattering as an inexpensive and convenient technique for characterizing regular shaped nano-particles in a fluid medium.
Citation
Zaman, M. (2014). Characterizing Nanoparticle Size by Dynamic Light Scattering Technique (DLS). Graduate Theses and Dissertations Retrieved from https://scholarworks.uark.edu/etd/2199
