Solvent Effects in Nanocrystal Self-Assembly

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Date
2019-01-01
Authors
Waltman, Thomas
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Honors Projects and Posters
University Honors Program

The Honors project is potentially the most valuable component of an Honors education. Typically Honors students choose to do their projects in their area of study, but some will pick a topic of interest unrelated to their major.

The Honors Program requires that the project be presented at a poster presentation event. Poster presentations are held each semester. Most students present during their senior year, but may do so earlier if their honors project has been completed.

This site presents project descriptions and selected posters for Honors projects completed since the Fall 2015 semester.

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Physics
Abstract

Materials which are composed of long-range, ordered nanocrystals exhibit many potentially revolutionary properties as compared with traditional materials. There is much to be learned about the dynamics associated with the assembly of these materials. We have previously characterized the equilibrium configuration of arrangements of highly symmetric nanocrystal clusters, and we seek now to determine solvent effects during the process of assembly via computer simulation. We have simulated the process of solvent evaporation using HOOMD and HOODLT and have found that the preferred orientation of the nanocrystals is on the boundary of the liquid solvent. As solvent is evaporated, the nanocrystals are forced to move closer together until the solvent is evaporated out completely, leaving behind nanocrystals in ordered structures.

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