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Plasmonic Nanoparticle Layers with Controlled Orientation

Inactive Publication Date: 2019-10-24
VIRGINIA TECH INTPROP INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides methods for creating articles with plasmonic nanoparticles and the resulting films, nanoprisms, and layers of nanoparticles. The nanoparticles can have different plasmonic properties and can absorb, reflect, scatter, and transmit light. The layers of nanoparticles can be oriented or randomly oriented, and there can be different concentrations or surface densities of nanoparticles. The dielectric material can be a polymer, and there can be different metals or metal oxides in the nanoparticles. The technical effects include creating novel materials with plasmonic properties and improved optical performance.

Problems solved by technology

The method results in the formation of composite films of polyelectrolytes and plasmonic nanoparticles.

Method used

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  • Plasmonic Nanoparticle Layers with Controlled Orientation
  • Plasmonic Nanoparticle Layers with Controlled Orientation
  • Plasmonic Nanoparticle Layers with Controlled Orientation

Examples

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Embodiment Construction

[0044]Detailed embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which may be embodied in various forms. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately detailed method, structure or system. Further, the terms and phrases used herein are not intended to be limiting, but rather to provide an understandable description of the invention.

[0045]As shown in FIGS. 1A-1D, some embodiments of the present invention provide a layer-by-layer technique used to prepare composite films of polyelectrolytes and plasmonic nanoparticles on articles or substrates. In a preferred embodiment, Ag plasmonic nanoparticles may be used.

[0046]As shown for one embodiment, a substrate or article 100...

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Abstract

An article comprising one or more layers of plasmonic nanoparticles located between opposing layers of dielectric materials.

Description

RELATED APPLICATIONS[0001]This application claims the benefit of U.S. Provisional Application No. 62 / 448,581, filed Jan. 20, 2017.BACKGROUND OF THE INVENTION[0002]Plasmonic nanoparticles are particles whose electron density may be coupled with electromagnetic radiation of wavelengths that are far larger than the particle due to the nature of the dielectric-metal interface between the medium and the particles. Articles incorporating plasmonic nanoparticles have use in applications ranging from solar cells, sensing, spectroscopy to cancer treatment.BRIEF SUMMARY OF THE INVENTION[0003]In one embodiment, the present invention provides methods that provide articles having plasmonic nanoparticles by applying the particles using the layer-by-layer technique. The method results in the formation of composite films of polyelectrolytes and plasmonic nanoparticles.[0004]In other embodiments, the present invention provides methods that form nanoprisms having plasmonic properties.[0005]In other e...

Claims

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Application Information

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IPC IPC(8): G02B6/122G02B26/02G02B6/132
CPCB82Y20/00G02B2207/101G02B26/02B82Y30/00G02B6/1226G02B6/132G02B6/1221G02B6/13G02B1/118B32B5/16B32B7/025Y10T428/12014Y10T428/12028Y10T428/12049B32B27/14B32B27/18
Inventor LIU, GUOLIANGKHAN, ASSAD U.
Owner VIRGINIA TECH INTPROP INC