Molecular tunnel junctions and their use as sources of electronic plasmons
AssigneesNational University of Singapore, Agency for Science, Technology and Research
InventorsWei Du, Tao Wang, Christian Albert Nijhuis, Hong-Son Chu, Lin Wu
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Abstract
A method of producing electronic plasmons by applying a bias to a molecular tunnel junction to excite plasmons, in which the molecular tunnel junction contains a top metallic electrode formed of a eutectic metal alloy and a metal oxide, a bottom metallic electrode formed of a transition metal, and a self-assembled monolayer formed of a plurality of organic molecules disposed between the top metallic electrode and the bottom metallic electrode. Also disclosed are a molecular tunnel junction for producing electronic plasmons and a method for preparing such a molecular tunnel junction.
Claims27
A method of producing electronic plasmons, the method comprising:
- providing a molecular tunnel junction,
- applying a bias to the molecular tunnel junction to excite plasmons, and
- detecting the plasmons thus produced,
- wherein the molecular tunnel junction contains a top metallic electrode formed of a eutectic metal alloy and a metal oxide, a bottom metallic electrode formed of a transition metal, and a self-assembled monolayer formed of a plurality of organic molecules disposed between the top metallic electrode and the bottom metallic electrode.
A molecular tunnel junction for producing electronic plasmons, comprising:
- a top metallic electrode formed of an eutectic metal alloy and a metal oxide,
- a bottom metallic electrode formed of a template-striped metal, and
- a self-assembled monolayer formed of a plurality of molecular diodes disposed between the top metallic electrode and the bottom metallic electrode,
- wherein the plurality of molecular diodes each contain a —SR thiolate moiety, in which R is a molecular chain containing an aryl group, a heteroaryl group, or a metallocene group, and an alkynyl group;
- and the plurality of molecular diodes enable bias selective plasmon excitation.
Dependencies are inferred from the claim text.