In this presentation we report the development of novel organic semiconductors, as well as thin-film processing and morphology engineering, for flexible and stretchable organic electronic devices such as thin film transistors, solar cells, electrolyte gated transistors, sensors and circuits. On material development, we present “soft” small-molecules and polymers by co-polymerizing pi-deconjugated building blocks, properly designed additives and tuned backbone conformation. New transistor architectures using semiconductor film porosity as the key element for enhancing mechanical flexibility and tune charge transport are also demonstrated. These films, combined with elastomeric pre-stretching, enable unprecedentedly stable current-output characteristic upon mechanical deformation, which are used for sensing analytes, strain, light, temperature and physiological parameters. Furthermore, we report our recent work on the design of fluorinated acceptors for organic solar cells and a new route to achieve ultra-stretchable solar cell devices. Finally, we present our work on using organic for SERS detection.
Antonio Facchetti is a Hightower Chair in MSE at the Georgia Institute of Technology, co-founder and the Chief Technology Officer of Flexterra Corporation, an Adjunct Professor at Northwestern University, and a Guest Professor at Linkoping University. He has published more than 560 research articles, 15 book chapters, and holds more than 120 patents. He received the ACS Award for Creative Invention, the Giulio Natta Gold Medal of the Italian Chemical Society, the team IDTechEx Printed Electronics Europe Award, the corporate Flextech Award. He is a Fellow of the European Academy of Sciences, National Academy of Inventors, MRS, AAAS, PMSE, Kavli, and RSC.
Antonio Facchetti interests include synthesis of organic/hybrid opto-electronic/energy materials, semiconductor devices, and sustainable technologies.