Method for patterning large scale nano-fibrous surfaces using capillography
First Claim
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1. A method of controllably patterning a plurality of nanofeatures comprising:
- providing a plurality of nanofeatures anchored on at least one end to a substrate;
disposing a quantity of a fluid onto at least a portion of the plurality of nanofeatures;
flowing the fluid onto the plurality of nanofeatures such that the fluid penetrates between the plurality of nanofeatures; and
controllably dissipating the fluid from the plurality of nanofeatures such that the nanofeatures are reoriented by the capillary forces of the dissipating fluid to form a plurality of repeating nanostructures from the reoriented nanofeatures,wherein the size and optionally at least one of the density and shape of the nanostructures are determined by controlling the rate at which the fluid dissipates from the substrate and by selecting the surface tension of the dissipating fluid.
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Abstract
A method of assembling large numbers of nanoscale structures in pre-determined ways using fluids or capillary lithography to control the patterning and arrangement of the individual nanoscale objects and nanostructures formed in accordance with the inventive method are provided. In summary, the current method uses the controlled dispersion and evaporation of fluids to form controlled patterns of nanoscale objects or features anchored on a substrate, such as nanoscale fibers like carbon nanotubes.
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Citations
32 Claims
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1. A method of controllably patterning a plurality of nanofeatures comprising:
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providing a plurality of nanofeatures anchored on at least one end to a substrate; disposing a quantity of a fluid onto at least a portion of the plurality of nanofeatures; flowing the fluid onto the plurality of nanofeatures such that the fluid penetrates between the plurality of nanofeatures; and controllably dissipating the fluid from the plurality of nanofeatures such that the nanofeatures are reoriented by the capillary forces of the dissipating fluid to form a plurality of repeating nanostructures from the reoriented nanofeatures, wherein the size and optionally at least one of the density and shape of the nanostructures are determined by controlling the rate at which the fluid dissipates from the substrate and by selecting the surface tension of the dissipating fluid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification