Abstract by Alexandra Gruszkiewicz
Physics and Astronomy
Temperature dependence of fluorescence lifetime for cadmium telluride nanoparticles and rhodamine B
Temperature is among the most important parameters in the physical sciences. In some instances, such as in surgeries around delicate tissues, a conventional thermometer is not a practical way to measure temperature, and a different method is needed. The goal of this project is to develop a basis for nanoscale temperature probes. In order to do this, we are establishing a correlation between fluorescence lifetime and temperature for rhodamine B molecules and cadmium telluride quantum dots. To measure lifetimes, we are using time-correlated single photon counting, a method which presents a statistical representation of lifetime. Measurements have been taken at 30K intervals. The data from these procedures will be used to form a model that will show the relationship between temperature and lifetime for Rhodamine B molecules and cadmium telluride nanoparticles.
I would like to present directly after Heather Hogg, as we are presenting different aspects of the same project