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Physics

Electronic Theses and Dissertations

Theses/Dissertations

2012

College of Natual Science and Mathematics

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Lamination Of Inverted Organic Photovoltaics And Associated Physical Properties, Brian A. Bailey Nov 2012

Lamination Of Inverted Organic Photovoltaics And Associated Physical Properties, Brian A. Bailey

Electronic Theses and Dissertations

This dissertation is the result of a series of studies involving hot press lamination of inverted organic photovoltaics. It first gives background and develops a lamination process for fabrication. Then, the process is used to answer fundamental questions about organic photovoltaics and to fabricate previously impossible or overly complicated devices. Finally, the author examines the scientific theory which describes the process and aligns that theory with related measurements.

The field of organic photovoltaics is introduced and the lamination process is developed and optimized. In the lamination process, part of the solar cell is deposited onto a rigid substrate, and the …


Modeling Of Growth Kinetics And Characterization Of Membrane Mechanics, Antonio Nava Jan 2012

Modeling Of Growth Kinetics And Characterization Of Membrane Mechanics, Antonio Nava

Electronic Theses and Dissertations

One growing field in alternative energy is biofuel production through microorganisms. These fields of research include hydrogen and biofuel production through the cultivation of algae. We've selected 2 different algae, Anabaena sp. cpcc 387 and Tetraselmis to study. Through mathematical modeling of Anabaena we investigate the complex multicellular relationships and colony stability when noise is introduced. In conjunction with researchers at NREL, we've set out to characterize Tetraselmis cells' membrane elasticity.


Analysis Of Interphase Chromatin Motion In Hela Cells, Matthew Joel Westacott Jan 2012

Analysis Of Interphase Chromatin Motion In Hela Cells, Matthew Joel Westacott

Electronic Theses and Dissertations

Motion of particles under influencing forces may be observed under light microscopy techniques. Variations in mobility of particles may give relevant biophysical information. Automated high resolution single particle tracking techniques were used to characterize interphase chromatin mobility in the cell nucleus. Interphase chromatin undergo replication prior to cell division with the assistance of replication proteins (machinery) which modify chromatin mobility. Using dual color imaging of flourescently tagged chromatin and proliferating cell nuclear antigen (PCNA) were followed through interphase. Chromatin motion was modelled as a two dimensional random walk. Reduction in chromatin mobility was observed during S phase was dependent on …