Browse All Digital Items

The purpose of this thesis is to describe the principles of the recording impedometer, to demonstrate its potential, and to interpret the physical and chemical information which it is capable of yielding.

Techniques aimed at scalable realization of periodic structures from self-assembly of constituent building blocks, an approach that could supplant microfabrication procedures, are often constrained by the lack of diversity in packing arrangements achievable with assembly of simple constituents (e.g., spherical particles). In this work, we present a strategy to effectively pattern colloidal crystalline assemblies at two characteristic scales; achieving extensive non-classical particle packing amidst fully periodic, banded structural defects.

The appearance of matrix effects in X-ray fluorescence analysis are wide apread. Usually these effects are undesirable. The purpose of this research was to investigate the feasibility of using these matrix effects to extend the limits of detection by adding an element which would selectively enhance the element of analytical interest.