Research

Molecular electronics scientists shatter ‘impossible’ record of rectification rate

Molecular electronics scientists shatter ‘impossible’ record of rectification rate
Assoc Prof Christian NIJHUIS from the Department of Chemistry, NUS and his research team, in collaboration with Dr Damien Thompson (University of Limerick) and Prof Enrique del Barco (University of Central Florida), have fabricated molecular diodes with a rectification ratio (the ratio between the forward and reverse current) of nearly one million. The rectification ratio is a measure of the switching performance of the device. Although the value is similar to that of conventional diodes, it is achieved at much smaller physical dimensions. These diodes change the number of molecules contributing to charge transport only in forward bias but not in the opposite direction due to electrostatic switching. This breakthrough represents another step towards realising nano-electronic devices based on molecular systems. (NATURE NANOTECHNOLOGY, DOI: 10.1038/nnano.2017.110)

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