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Research Abstracts Online
January 2010 - March 2011

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University of Minnesota Twin Cities
College of Science and Engineering
Department of Chemistry

PI: Aaron Massari

Sum Frequency Generation (SFG) Spectroscopy of Organic Field Effect Transistors

This project uses vibrational sum frequency generation and interfacial spectroscopy to study molecular structures at the buried interfaces in organic field effect transistors. With this approach, the researchers also seek to analyze structural perturbations induced by the application of electrical voltages when these devices are turned on. They are using MSI to perform DFT calculations for structure minimization of organic semiconductors and frequency predictions for the molecular vibrations that measured in experiments. In current work, the group is continuing their basis set studies and polaron energy studies on various organic semiconductor molecules. They are also fitting large batches of spectroscopic data using MATLAB and Mathematica.

Group Members

Timothy Anglin, Research Associate
Daniel O’Brien, Graduate Student