Date of Award
Open Access Dissertation
Chemistry and Biochemistry
Andrew B. Greytak
Semiconductor quantum dots have received extensive research interest due to the size tunable band gap, large extinction coefficient, and ease of synthesis. These nanocrystals possess large surface to volume ratios and the chemistry at the surface of the nanocrystal greatly influences the resultant optoelectronic properties. Therefore, after synthesis, purification of the quantum dot samples to remove synthetic by-products that may alter these properties is of great importance. Gel permeation chromatography (GPC), a form of size exclusion chromatography, has been shown to reproducibly purify CdSe quantum dots. This work focuses on the expansion of purification by gel permeation chromatography to other quantum dot systems. Furthermore, utilizing the subtle purification available through gel permeation chromatography the surface chemistry of III-V and IV-VI quantum dots is investigated.
Roberge, A.(2020). Gel Permeation Chromatography Purification and Surface Chemistry of Technologically Relevant Colloidal Quantum Dots. (Doctoral dissertation). Retrieved from https://scholarcommons.sc.edu/etd/5671