Recent Research from Prof. Van Keuren
Posted in News Story
ISMSM Faculty Member Edward Van Keuren has had two papers recently published. The first is the result of a collaboration of researchers in Van Keuren’s lab and the ISM, along with other Georgetown faculty and researchers from George Mason and Howard University. “Charge Transport through Superexchange in Phenothiazine – 7,7,8,8-Tetracyanoquinodimethane (PTZ-TCNQ) Cocrystal Microribbon FETs Grown Using Evaporative Alignment” was published online on November 22nd in ACS Applied Electronic Materials. The research deals with the optical and electronic characterization of the charge-transfer cocrystal PTZ-TCNQ. An evaporative alignment method was used to create oriented ribbons of PTZ-TCNQ, which were made into organic field effect transistors. Transfer curves of the devices showed primarily electron conduction, and temperature-dependent measurements of the mobility indicated superexchange-mediated hopping transport.
Additionally, Prof. Van Keuren was involved in research that included collaborators from Georgetown’s Department of Chemistry and Department of Oncology. “Molecular Parameters Promoting High Relaxivity in Cluster-Nanocarrier Magnetic Resonance Imaging Contrast Agents” was published in the 14th volume of ACS Applied Materials and Interfaces and investigates the water exchange rates of two clusters and corresponding cluster-nanocarriers to determine the mechanism of relaxivity.
