Porphyrin-Based Nano Switch (IMAGE)

Technical University of Munich (TUM)

Porphyrin-Based Nano Switch

Caption

Physicists at the Technische Universitaet Muenchen have created a nano switch based on a single porphyrin ring. If one of two protons from the inside of the ring is removed, the remaining proton can take on any one of four positions, initiated by a single tunnel electron from the tip of a scanning tunneling microscope.

Credit

Knud Seufert / Technische Universitaet Muenchen

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