Regensburg 2019 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
CPP: Fachverband Chemische Physik und Polymerphysik
CPP 55: Physics of Self-Organization in DNA Nanostructures (joint session CPP/BP)
CPP 55.3: Talk
Thursday, April 4, 2019, 12:45–13:00, H13
Functionalized DNA Origami Nanostructures for Molecular Electronics — •Turkan Bayrak1, Jingjing Ye2, Richard Weichelt3, Amanda Reyes4, Alexander Eychmüller3, Enrique Samano4, Ralf Seidel2, and Artur Erbe1 — 1Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany. — 2Peter Debye Institute for Soft Matter Physics, Universität Leipzig, Germany. — 3Physikalische Chemie, Technische Universität Dresden, Germany. — 4Centro de Nanociencias y Nanotecnología, Ensenada, México.
The DNA origami method provides a programmable bottom-up approach for creating nanostructures of any desired shape, which can be used as scaffolds for nanoelectronics and nanophotonics device fabrications. Based on this technique, the precise positioning of metallic and semiconducting nanoparticles along DNA nanostructures can be achieved. In this study, various DNA origami nanostructures (nanomolds, nanotubes and nanosheets) are used for the fabrication of nanoelectronic devices. To this end, gold nanoparticles, semiconductor quantum dots/rods are used in/on the DNA origami structures to create nanowires and transistor-like devices. The DNA origami nanowires and transistors were electrically characterized from room temperature (RT) down to 4.2K. Temperature-dependent characterizations of wires were performed in order to understand the dominant conduction mechanisms. Some nanowires showed pure metallic behavior. Transistor like devices showed Coulomb blockade behavior at RT. The study shows that self-assembled DNA structures can be used for nanoelectronic patterning and single electron devices.