Conductance and Electroluminescence in Single-Molecule Devices

DIPC Seminars

Speaker: Latha Venkataraman
Columbia University
When: 2024/06/14
12:00
Place: Donostia International Physics Center (Hybrid Seminar)
Host: Thomas Fredriksen
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Conductance and Electroluminescence in Single-Molecule Devices

Over the past decade, there has been tremendous progress in the measurement, modeling and understanding of structure-function relationships in single molecule circuits. Experimental techniques for reliable and reproducible single molecule junction measurements have, in part, led to this progress. In particular, the scanning tunneling microscope- based break-junction technique has enabled rapid, sequential measurement of large numbers of nanoscale junctions allowing a statistical analysis to readily distinguish reproducible characteristics. Although the break-junction technique is mostly used to measure electronic properties of single-molecule circuits, in this talk, I will demonstrate its versatile uses to understand both physical and chemical phenomena with single molecule precision. I will discuss some recent experiments and analysis aimed at achieving ultra-high conductances in long molecular wires. I will then discuss how this platform can be used to understand electroluminescence from these devices.