Understanding colloidal quantum dot excitation with solution photon correlation fourier spectroscopy

• Main Author: Heathcote, S. Leigh (Stephanie Leigh)
• Other Authors: Moungi G. Bawendi.
• Format: Others
• Language: English
• Published: Massachusetts Institute of Technology 2015
• Subjects: Chemistry.
• Online Access: http://hdl.handle.net/1721.1/97990

Thesis: S.M., Massachusetts Institute of Technology, Department of Chemistry, 2015. === Cataloged from PDF version of thesis. === Includes bibliographical references (pages 27-29). === Colloidal quantum dots (CQDs) have useful absorption and emission properties but exist in inhomogenous batches. Solution photon correlation fourier spectroscopy (S-PCFS) combines interferometry with fluorescence correlation spectroscopy (FCS) to measure the spectral correlation of the average single fluorophore in a solution. With S-PCFS, the intrinsic emission linewidth of CQDs can be assessed. This linewidth information is related to phonon coupling and gives insight into the separation of holes and electrons in excited CQDs. Experimental considerations and recommendations for troubleshooting a S-PCFS apparatus are also presented here. === by S. Leigh Heathcote. === S.M.