Empirical Modeling of the Influence of Diameter Distribution of Photoluminescence of Graphene Quantum Dots
As a new class of fluorescent carbon materials, graphene quantum dots (GQDs) have drawn increasing attention due to their exceptional properties and potential optical applications such as light emitting diode. Even though there are vast amount of data on photoluminescence (PL) spectrum of GQDs, limited studies have focused on how size distribution affects the PL. In this project, we develop an empirical model that captures such relationship. Using MATLAB, we implement fitting programs to benchmark our model against existing data in the literature in order to test its accuracy. We found notable deviations between our fitting and actual data, which we attribute to unideal conditions including functional groups terminating the carbon bond, inhomogeneous layer number distributions, and the absorption effect on PL. After the summer, we plan to fabricate our own GQDs so that we can have better interpretation of the PL of GQDs based on our model.
|Work Title||Empirical Modeling of the Influence of Diameter Distribution of Photoluminescence of Graphene Quantum Dots|
|License||In Copyright (Rights Reserved)|
|Publication Date||April 2021|
|Deposited||April 07, 2021|
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