Fabrication of Nanowires
OwnerPavel Kornilovich, Peter Mardilovich +2inventors
InventorsPavel Kornilovich, Peter Mardilovich, Kevin Peters, James Stasiak
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Abstract
This disclosure relates to a system and method for creating nanowires. A nanowire can be created by exposing layers of material in a superlattice and dissolving and transferring material from edges of the exposed layers onto a substrate. The nanowire can also be created by exposing layers of material in a superlattice and depositing material onto edges of the exposed layers.
Claims86
A system comprising:
- a superlattice having multiple alternating layers including first alternating layers of a first material and second alternating layers of a second material, at least one layer of the multiple alternating layers having a length, a thickness, and a depth, the multiple alternating layers being deposited in a direction substantially parallel to the thickness;
- wherein:
- the multiple alternating layers have a first surface that extends substantially parallel to the thickness, the first surface including a portion of the first alternating layers and the second alternating layers;
- and
- the multiple alternating layers having a second surface that is physically separated from the first surface, the second surface for electrical communication with the multiple alternating layers.
A system comprising:
- a superlattice having multiple alternating layers of a first material and a second material, at least one layer of the multiple alternating layers having a length, a thickness, and a depth, the multiple alternating layers being deposited in a direction substantially parallel to the thickness;
- wherein:
- at least one of the multiple alternating layers of the first material has a first surface that extends substantially parallel to the thickness;
- at least one of the multiple alternating layers of the second material having a second surface that extends substantially parallel to the first surface, and wherein the second surface is offset from the first surface;
- and
- the multiple alternating layers having a third surface, the third surface being physically remote from the first surface and the second surface, the third surface for electrical communication.
A system comprising:
- a superlattice having multiple alternating layers of two or more conductive materials alternating with one or more other materials, at least one of the multiple alternating layers having a length, a thickness, and a depth, the multiple alternating layers being deposited in a direction substantially parallel with the thickness;
- wherein:
- the multiple alternating layers of the conductive materials have a first set of exposed faces and the multiple alternating layers of the other materials have a second set of exposed faces, the first set of exposed faces being offset from the second set of exposed faces in a direction taken perpendicular to the thickness.
A method comprising:
- fabricating nanometer-thickness wires by:
- exposing, to ions of a first conductive material, a working surface of a superlattice having alternating layers of a second conductive material and one or more other materials, the working surface comprising exposed edges of the alternating layers, the exposed edges having a thickness and a length, and
- electrochemically depositing the ions on or near the exposed edges of the second conductive material layers to create wires of the first conductive material.
A method for fabricating nanometer-thickness wires, comprising:
- exposing, to a solution of charged molecules or charged nano-objects, a working surface of a superlattice having alternating layers of a conductive material and one or more other materials, the working surface comprising exposed edges of the alternating layers, the exposed edges having a thickness and a length;
- and
- electro-phoretically depositing the charged molecules or charged nano-objects on or near the exposed edges of the conductive material layers, there to create wires made of molecules or nano-objects.
A method for fabricating nanometer-thickness wires, comprising:
- exposing, to a bath of water having a dissolved chemical, a working surface of a superlattice having alternating layers of a conductive material and one or more other materials, the working surface comprising exposed edges of the alternating layers, the exposed edges having a thickness and a length;
- and
- inducing a chemical reaction between the dissolved chemical and water, thereby inducing electrolytic deposition of a reaction product of the reaction on or near the exposed edges of the conductive material layers, there to create wires made of the reaction product.
A method comprising:
- fabricating nanometer-thickness wires by:
- etching a working surface of a superlattice having alternating layers of one or more conductive materials with layers of one or more other materials, the other materials having a higher etch rate than the conductive materials, the working surface comprising exposed edges of the alternating layers, at least one of the exposed edges having a thickness and a length, with the thickness being nanometers in scale, wherein the etching the working surface preferentially erodes the other material layers to cause the exposed edges of the one or more conductive material layers to be offset from the exposed edges of the other material layers;
- and
- using electrochemical deposition to dissolve the one or more conductive materials from the exposed edges of the conductive material layers and apply the dissolved materials onto a conductive substrate.
A method comprising:
- fabricating nanometer-thickness wires by:
- providing a working surface of a superlattice having alternating layers of one or more conductive materials with layers of one or more other non-conductive materials, the working surface being substantially planar and comprising exposed edges of the alternating layers, at least one of the exposed edges having a thickness and a length, with the thickness being nanometers in scale;
- providing a substrate having a conducting thin-film surface layer;
- immersing the working surface and the substrate in an electrolyte capable of carrying ions of the conducting thin-film surface layer;
- and
- using electrochemical etching to dissolve part of the conducting thin-film surface layer locally and re-deposit the part of the conducting thin-film surface layer on the exposed edges of the conductive material layers.
A computer readable medium having computer executable instructions for performing steps comprising:
- fabricating nanometer-thickness wires by:
- placing, within nanometers to tens of nanometers of an insulating layer of a conductive substrate and within an electrolyte capable of carrying ions of one or more conductive materials, a working surface that exposes edges of alternating layers, including a first set of layers of one or more conductive materials and a second set of layers of one or more other materials, the exposed edges having a thickness and a length, with the thickness being nanometers in scale;
- and
- creating a voltage difference between the exposed edges of the conductive material layers and the conductive substrate.
A method comprising:
- fabricating a superlattice by:
- applying onto a substrate, layers of two or more conductive materials with a first thickness less than 50 nanometers alternating with one or more other materials with a second thickness less than 50 nanometers, to create alternating layers of the conductive materials and the other materials;
- and
- providing a working surface including a first set of edges made from the conductive materials and a second set of edges made from the other materials, the first set of edges extending substantially parallel to each other and the second set of edges.
Dependencies are inferred from the claim text.