Light induced nanowire assembly
AssigneeUniversity of Notre Dame du Lac
InventorsNattasamon Petchsang, Masaru Kuno, Vladimir Plashnitsa
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Abstract
The invention provides a method for assembling semiconducting nanowires, which method can include providing a mixture comprising a dielectric solvent and two or more semiconducting nanowires, wherein the semiconducting nanowires can be the same or different; exposing the mixture to an electrostatic charge under lighting conditions; and allowing macroscopic nanowire alignment to occur, wherein each nanowire is substantially oriented along the direction of the applied electric field.
Claims20
A method for assembling semiconducting nanowires, the method comprising:
- providing a mixture comprising a dielectric solvent and two or more semiconducting nanowires, wherein the semiconducting nanowires can be the same or different;
- exposing the mixture to an electrostatic charge under suitable and effective lighting conditions to facilitate macroscopic nanowire alignment;
- and
- allowing macroscopic nanowire alignment to occur, wherein each nanowire is substantially oriented along the direction of the applied electric field.
A method for assembling semiconducting nanowires into yarns, the method comprising:
- providing a mixture, wherein the mixture comprises a dielectric solvent and at least two semiconducting nanowires;
- loading the mixture into a conduit;
- applying an electrostatic charge to a substrate;
- depositing the mixture from the conduit on top of the charged substrate under lighting conditions;
- and
- pulling the conduit away from the substrate in a direction normal to the surface.
A method for assembling semiconducting nanowires into segmented yarns, the method comprising:
- providing more than one mixture, each more than one mixture comprising a dielectric solvent and at least two semiconducting nanowires;
- depositing more than one of said mixtures on top of a Teflon substrate;
- applying an electrostatic charge to the substrate using a tissue or an electrostatic generator;
- introducing a conduit into one of said more than one mixtures and then removing the conduit, wherein a first yarn of the at least two semiconducting nanowires is formed;
- removing the conduit from one of said more than one mixtures and placing the bottom of the first yarn of at least two semiconducting nanowires into a second of the other said more than one mixtures,
- wherein at least one yarn of at least two semiconducting nanowires is formed, the method characterized by assembling nanowires using LINA (light induced nanowire assembly), the LINA comprising applying lighting conditions to the at least two semiconducting nanowires;
- and
- allowing the at least two semiconducting nanowires to alligate into a first yarn during the removing of the conduit from one of the said more than one mixtures and the placing of the bottom of the first yarn of the at least two semiconducting nanowires into the second of the other more than one mixtures to form segmented yarns.
Dependencies are inferred from the claim text.