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SKM 2023 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 33: Poster II

HL 33.59: Poster

Wednesday, March 29, 2023, 17:00–19:00, P1

Investigation of Transport Phenomena Through Functionalized Single Molecules Using Liquid Mechanically Controllable Break Junctions — •Harpreet Sondhi — FWIO-T, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany

The creation of molecular components for use as electronic devices has made enormous progress. In order to advance the field further toward realistic electronic concepts, methods for the controlled modification of the conducting properties of the molecules contacted by metallic electrodes need to be further developed. Here a comprehensive study of charge transport in a class of molecules that allows modifications by introducing metal center/side chain groups into organic structures is presented. Single molecules are electrically contacted and characterized in order to understand the role of the metal center/side chain groups in the conductance mechanism through the molecular junctions. It is shown that the presence of single metal ions/side chain groups modifies the energy levels and the coupling of the molecules to the electrical contacts, and that these modifications lead to systematic variations in the statistical behavior of transport properties of the molecular junctions.

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