BYU

Abstract by Heather Hogg

Personal Infomation


Presenter's Name

Heather Hogg

Co-Presenters

None

Degree Level

Undergraduate

Co-Authors

None

Abstract Infomation


Department

Physics and Astronomy

Faculty Advisor

John Colton

Title

Temperature dependence of fluorescence lifetime for cadmium telluride nanoparticles and rhodamine B

Abstract

Temperature is an essential parameter of modern microfluidic and medical technologies. Recently, non-contact temperature probes have been under research and development to give more accurate data in microfluidic devices and prevent tissue damage in laser surgery. This research is to determine the relationship between the fluorescence lifetime and temperature for cadmium telluride nanoparticles and rhodamine B fluorescent dye. These materials both exhibit temperature dependent fluorescence lifetime, making them suitable candidates for temperature probes.  Fluorescence lifetime is measured using time correlated single photon counting, a method of building a statistical representation of the lifetime. The relationship between temperature and lifetime for rhodamine B and cadmium telluride is expected to be exponential.