Publication NumberUS 20110082053
Assignees
    StatusPatent Application
    Application Number12/865391
    AvailabilityUnknown
    Filing Date2009-01-30
    Publication Date2011-04-07

    Abstract

    Provided is a molecular rectifier comprised of a diamondoid molecule and an electron acceptor attached to the diamondoid molecule. The electron acceptor is generally an electron accepting aromatic species which is covalently attached to the diamondoid.

    Claims

    • 1. A molecule exhibiting rectifying properties comprising: a) a diamondoid molecule; and b) a molecular or chemical functionality covalently attached to said diamondoid molecule, wherein the combination functions to conduct current preferentially in one direction.
    • 2. The molecule of claim 1, wherein the combination of the diamondoid molecule and molecular or chemical functionality covalently attached thereto function as a p-n function.
    • 3. The molecule of claim 1, wherein the diamondoid molecule is selected from the group consisting of higher diamondoids, lower diamondoids, functionalized diamondoids, and heterodiamondoids.
    • 4. The molecule of claim 1, wherein the molecular or chemical functionality is selected from the group consisting of fullerenes, carbon nanotubes, and functionalized variations thereof.
    • 5. The molecule of claim 1, wherein the molecular or chemical functionality is selected from the group consisting of conducting polymers, electron deficient aromatic species, —NO2, —CN, halogens (F, Cl, Br, and I), and alkenes.
    • 6. The molecule of claim 4, wherein the molecular or chemical functionality is C60.
    • 7. The molecule of claim 1, wherein the molecular or chemical functionality is selected from the group consisting of polyacenes, graphenes, polyaromatics, polyheteroaromatics, and substituted variations thereof.
    • 8. The molecule of claim 1, wherein the molecular or chemical functionality is an aromatic species substituted with a —CN group.
    • 9. The molecule of claim 1, wherein the diamondoid molecule is functionalized with a —SH, —OH, —COOH1—NH2, vinyl, butadienyl or alkynyl group.
    • 10. The molecule of claim 1, wherein the molecular or chemical functionality covalent attached to said diamondoid molecule is attached through a connector selected from the group consisting of a cyclohexene connector, an azomethine connector and a cyclopropane connector.
    • 11. The molecule of claim 10, wherein the connector is a cyclohexene connector.
    • 12. A method for making a molecular rectifier or p-n junction, said method comprising the steps of: a) chemically-modifying a diamondoid molecule to yield a diamondoid derivative comprising a diene functionality; and b) reacting the diamondoid with an electron-acceptor aromatic species to yield a molecular rectifier or p-n junction as a Diels-Alder adduct.
    • 13. The method of claim 12, wherein the diamondoid molecule is selected from the group consisting of higher diamondoids, lower diamondoids, functionalized diamondoids, and heterodiamondoids.
    • 14. The method of claim 12, wherein the electron-acceptor aromatic species is a fullerene.
    • 15. The method of claim 14, wherein the fullerene is C60.
    • 16. The method of claim 12, wherein the electron-acceptor aromatic species is substituted with a —CN group.
    • 17. An array comprising a plurality of the rectifying molecules of claim 1.
    • 18. The array of claim 17, wherein the molecular junctions within the array are chemically-anchored to a substrate.
    • 19. The array of claim 18, wherein the substrate is comprised of gold or silver.
    • 20. A photoluminescent device comprising a plurality of the rectifying molecules of claim 1.
    • 21. The photoluminescent device of claim 20, wherein said device generally functions as a light-emitting diode.
    • 22. A photovoltaic device comprising a plurality of the rectifying molecules of claim 1.
    • 23. The photovoltaic device of claim 22, wherein said device generally functions as a solar cell.
    • 24. A transistor which comprises at least one of the rectifying molecules of claim 1.
    • 25. A transistor which comprises at least one of the molecules of claim 2.
    • 26. The transistor of claim 25, wherein the molecule is a dumbbell-shaped structure that represents a n-p-n type junction.