Nano-structured dielectric composite
First Claim
1. A multilayer nanocomposite structure produced in a vacuum environment comprising:
- a void-free layer of discrete nanoparticles embedded in a radiation-cured dielectric polymer; and
a layer of said polymer deposited over the layer of discrete nanoparticles in a thickness greater than an average diameter of the nanoparticles so as to provide a substantially level polymer spacer film above the layer of discrete nanoparticles, said layers of discrete nanoparticles and polymer constituting a dielectric structure;
wherein said dielectric structure is repeated to form a multilayer stack incorporating at least ten polymer layers per micron of thickness and containing a three-dimensional lattice of nanoparticles.
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Abstract
A multilayer dielectric structure is formed by vacuum depositing two-dimensional matrices of nanoparticles embedded in polymer dielectric layers that are thicker than the effective diameter of the nanoparticles, so as to produce a void-free, structured, three-dimensional lattice of nanoparticles in a polymeric dielectric material. As a result of the continuous, repeated, and controlled deposition process, each two-dimensional matrix of nanoparticles consists of a layer of uniformly distributed particles embedded in polymer and separated from adjacent matrix layers by continuous polymer dielectric layers, thus forming a precise three-dimensional nanoparticle matrix defined by the size and density of the nanoparticles in each matrix layer and by the thickness of the polymer layers between them. The resulting structured nanodielectric exhibits very high values of dielectric constant as well as high dielectric strength.
13 Citations
20 Claims
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1. A multilayer nanocomposite structure produced in a vacuum environment comprising:
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a void-free layer of discrete nanoparticles embedded in a radiation-cured dielectric polymer; and a layer of said polymer deposited over the layer of discrete nanoparticles in a thickness greater than an average diameter of the nanoparticles so as to provide a substantially level polymer spacer film above the layer of discrete nanoparticles, said layers of discrete nanoparticles and polymer constituting a dielectric structure; wherein said dielectric structure is repeated to form a multilayer stack incorporating at least ten polymer layers per micron of thickness and containing a three-dimensional lattice of nanoparticles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A multilayer nanocomposite structure comprising:
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first and second dielectric stacks, each dielectric stack including a corresponding layer of discrete nanoparticles occluded by a radiation-cured dielectric polymer deposited in a vacuum environment thereby producing a void-free polymer layer that contains a spatially uniform two-dimensional array of said nanoparticles; and a corresponding layer of said dielectric polymer disposed over said void-free polymer layer in a thickness greater than an average diameter of the nanoparticles to ensure a substantially level polymer spacer film above said void-free polymer layer, said second dielectric stack being formed over the first dielectric stack, said nanocomposite structure incorporating a plurality of said first dielectric stacks and a plurality of said second dielectric stacks to define at least ten polymer layers per micron of thickness of the nanocomposite structure, wherein the nanocomposite structure includes a three-dimensional lattice of nanoparticles to define a structure having plasmon-resonance based absorption characteristics. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification