Mithrene and methods of fabrication of mithrene
AssigneeThe Regents of the University of California
InventorsJames Nathan Hohman, Mary S. Collins, Tess E. Smidt
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Abstract
Described are metal organochalcognides which are bulk nanomaterials, expressing monolayer properties in their as-synthesized states. Also described are certain novel metal organochalcogenide compositions. Further described are several methods of preparation of metal organochaleogenides, both solution- and vapor deposition-based, and methods of use of the resulting metal chalcogenides in assays and devices.
Claims41
A method of preparing a crystalline metal chalcogenide of Formula 1:
- [M-Z-Ar]∝, the method comprising:
- providing a. first solution comprising a metal ion, M+, in a first solvent, the metal ion obtained by dissolving a metal component, MpXq, in the first solvent;
- providing a second solution comprising a diaryl dichalcogenide, Ar-Z-Z-Ar, in a second solvent;
- and
- contacting the first solution with the second so ion to provide the metal chalcogenide a crystalline, bulk nanomaterial;
- wherein:
- M is selected from the group consisting of silver (Ag), lead (Pb), mercury (Hg), gold (Au), copper (Cu) zinc (Zn), tin (Sn), cobalt (Co), thallium (Tl), (Ga), indium (In) and cadmium (Cd);
- p is 1 or 2;
- X is an oxide or salt selected from the group consisting of O, NO3, SO4, Cl, Br, CH3CO2, CF3SO3, PF6, BF4, and ClO4;
- q is 1, 2, or 3;
- Z is sulfur, selenium, tellurium, or combinations thereof;
- and
- Ar is phenyl or naphthyl.
A vapor phase deposition method of preparing a substrate coated with a film comprising a metal chalcogenide of Formula I:
- [M-Z-R]∝, the method comprising:
- providing a substrate comprising a coating of a metal, M, or an oxide thereof;
- and
- exposing the substrate coated with metal to a vapor phase comprising a first dialkyl or diaryl dichalcogenide, R2Z2, for a time sufficient to provide a film of a first [M-Z-R]∝, on the substrate;
- wherein:
- the metal or oxide thereof is selected from the group consisting of silver, titanium, zinc, lead, copper, indium, gallium and cadmium;
- Z is sulfur, selenium, tellurium, or combinations thereof;
- and
- R is phenyl, naphthyl, biphenyl, methyl, ethyl, propyl, butyl or pentyl.
A metal-organic chalcogenide composition according to Formula I:
- [M-Z-R]∝, wherein:
- M is a metal selected from the group consisting of silver, lead, mercury, gold, copper, zinc, tin, cobalt, thallium, gallium, indium and cadmium;
- Z is selected from the group consisting of tellurium and a combination of selenium and tellurium;
- and
- R is phenyl, naphthyl, biphenyl, methyl, ethyl, propyl, butyl or pentyl.
A device comprising a metal-organic chalcogenide composition according to Formula I:
- [M-Z-R]∝, wherein:
- M is a metal selected from the group consisting of silver, lead, mercury, gold, copper, zinc and cadmium;
- Z is selected from the group consisting of sulfur, selenium, tellurium and combinations thereof;
- and
- R is phenyl, naphthyl, biphenyl, methyl, ethyl, propyl, butyl or pentyl.
Dependencies are inferred from the claim text.