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Dr. Jason Slinker, Physics Department, University of Texas at Dallas

Event Date: 
Monday, September 9, 2019 - 3:30pm to 4:30pm

Mixed Conductors for Energy Efficient Optoelectronics and Biosensors

The interplay between ionic and electronic charges in soft materials can be controlled to yield unique electrical properties and novel capabilities in devices. My research interests span two core areas: organic optoelectronic devices and bioinspired electronics. Both systems leverage materials that are mixed conductors, possessing significant ionic and electronic conductivity. My research efforts leverage a fundamental understanding of ionic materials and nanoscale patterning to implement novel device architectures with superior performance.

Light-emitting electrochemical cells (LECs) offer the benefits of organic LEDs in a simple, single layer architecture useful for passive lighting applications. We have demonstrated that control of ion redistribution in LECs with lithium salts improves response time, luminance, efficiency, and lifetime. Solar cells based on hybrid organic/inorganic perovskites have achieved high performance, but fabrication and characterization options are limited due to their hybrid organic/inorganic composition. We have recently demonstrated that these solar cells can be accessed with a non-destructive liquid electrolyte approach that enables both direct measure and enhancement of their intrinsic electrical properties. Concerning bioelectronics, we have created DNA-inspired molecular wires incorporating perylene diimides and tested these constructs in nanogap devices, finding them to enhance current sixfold over DNA. We have utilized the inherent electronic sensitivity of DNA to structural perturbation to create electrochemical sensors of DNA damaging drugs.


Jason Slinker completed his PhD in Applied Physics at Cornell University and performed postdoctoral study at The California Institute of Technology in Biochemistry. He is currently an Associate Professor of Physics at the University of Texas at Dallas. He was a 2014 recipient of the Regents Outstanding Teaching Award by the University of Texas System, and in 2016 he received the Hyer Award by the American Physical Society Texas Section. His work has been supported by the US National Science Foundation, the US Department of the Navy, and the US Office of Naval Research

Event Location: 
McMaster
Location Details: 
JHE 326H