Prof. Stefan Hecht, Ph.D.
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DWI - Leibniz Institute for
Interactive Materials
& RWTH Aachen University
Forckenbeckstr. 50
52074 Aachen, Germany
www.dwi.rwth-aachen.de
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& IRIS Adlershof
Humboldt-Universität zu Berlin
Brook-Taylor-Str. 2
12489 Berlin, Germany
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Claudia Rothkirch
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News Details
Self-assembly in real time
In a collaboration with the Samorì group (ISIS-ULP Strasbourg) we could use the high sensitivity of graphene transistor devices to disentangle molecular self-assembly processes at the liquid-solid interface. Key to the study was an alkylated spiropyran derivative, which after conversion into its merocyanine isomer formed a stable monolayer on graphene while thermal reversion to the spiropyran form let to disassembly. The kinetics of assembly and disassembly - monitored via the current of the device - provided unprecedented insight into interfacial self-assembly in real time. The work just appeared in Nature Communications.
18.09.2020
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