Degree Name

MS (Master of Science)



Date of Award


Committee Chair or Co-Chairs

Catherine E. McCusker

Committee Members

Marina Roginskaya, Reza Mohseni


About 85% of the world’s energy is derived from non-renewable sources—coal, petroleum, and natural gas. Solar photocatalysis is one way to potentially generate cheap renewable fuels by harnessing energy from the sun using a photosensitizer and converting it into chemical energy. The efficiency of a photosensitizer depends on its capacity to form a prolonged triplet excited state. Zinc dipyrrin complexes have the potential to be efficient sensitizers for reductive photochemistry, but their ability to form long-lived triplet excited states still needs extensive research. The overall aim of this research is to probe the role charge separation plays in the formation of triplet state in metal complexes of dipyrrin photosensitizers. The specific objectives are to synthesize and characterize zinc and boron dipyrrin complexes, analyze their photophysical properties—such as steady state spectroscopy, low temperature emission spectroscopy—and quantify their triplet states using time-resolved transient absorption spectroscopy.

Document Type

Dissertation - unrestricted


Copyright by the authors.