Photoswitchable molecules for the next generation devices

Published on October 10, 2014

Improving and implementing photoswitches into organic transistors to compute at the speed of light.

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In this video clip, Stefan Hecht uses the historical setting of Berlin’s Museum of Technology to motivate his research on photoswitchable molecules that act as optically addressable gates in transistor and other devices. He then takes you to the lab, where graduate student Martin Herder explains to you how he prepares and characterizes new molecules with enhanced photoswitching performance. With these molecules in hand and in collaboration with the group of Prof. Paolo Samori in Strasbourg they were able to demonstrate the first prototype photoaddressable transistors. This research open up ample opportunities in optoelectronics as well as sensing applications.

Hecht Group | Humboldt-Universität zu Berlin, Germany

Stefan Hecht is a Professor of Chemistry and directs the Laboratory of Organic Chemistry and Functional Materials at Humboldt-Universität zu Berlin, Germany. For more information see: www.hechtlab.de.

Martin Herder is currently a graduate student in the Laboratory of Organic Chemistry and Functional Materials at Humboldt-Universität zu Berlin, Germany. His research evolves around the design of photoswitchable molecules with improved performance, in particular for use in optically addressable organic transistors.

Sources
Orgiu, E., Crivillers, N.; Herder, M.; Grubert, L., Pätzel, M., Frisch, J., Pavlica, E., Duong, D.T., Bratina, G., Salleo, A., Koch, N., Hecht, S., Samorì P.; “Optically switchable transistor via energy-level phototuning in a bicomponent organic semiconductor” Nature Chemistry 2012, 4, 675-679, DOI: 10.1038/nchem.1384.

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