Abstract by Alexandra Gruszkiewicz

Personal Infomation

Presenter's Name

Alexandra Gruszkiewicz



Degree Level




Abstract Infomation


Physics and Astronomy

Faculty Advisor

John Colton


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