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Structures with surface-embedded additives and related manufacturing methods

A technology of embedding structure and additives, which is applied to the device of coating liquid on the surface, pretreatment of the surface, transportation and packaging, etc., which can solve the problems of environmental damage, acid and alkali sensitivity, and ITO coating is fragile

Active Publication Date: 2013-03-13
NUOVO FILM SUZHOU CHINA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, ITO coating has many deficiencies
Specifically, ITO coatings are typically fabricated via sputtering and annealing in energy-intensive high temperature and vacuum environments, and the etchant used during fabrication can be corrosive and environmentally hazardous
Furthermore, the resulting ITO coatings are brittle or prone to cracking and can also be sensitive to acids and bases

Method used

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  • Structures with surface-embedded additives and related manufacturing methods
  • Structures with surface-embedded additives and related manufacturing methods
  • Structures with surface-embedded additives and related manufacturing methods

Examples

Experimental program
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Effect test

example 1

[0178] Formation of transparent conductive electrodes via one-step embedding

[0179]Silver nanowires (diameter = 90 nm and length = 60 μm) were vortexed for 5 s and dispersed in isopropanol (50 vol %) and 2,2,2-trifluoroethanol (50 vol %) at a concentration of 5 mg / ml ( Alfa Aesar (Alfa Aesar, 99%+) solution. Blades spaced 1 mil apart with flat sheets of clear acrylic (polymethyl methacrylate, Sign Mart, Inc.) pulled at 3 in / sec at 20°C and 23% humidity , to cup a solution containing silver nanowires onto an acrylic sheet. 0.5 ml of the nanowire-containing solution adequately covered a half square foot of acrylic sheet. This formulation and procedure yielded efficient solvent-embedded silver nanowires such that the nanowires were partially exposed to the surface of the acrylic sheet, as detected by a Jenway UV-visible spectrophotometer and SP4-Keithley four-point probe The system was measured to exhibit a light transmittance T of 86.6% and a sheet resistance R of 29±6Ω / sq ...

example 2

[0181] Formation of transparent conductive electrodes via two-step embedding

[0182] Silver nanowires (diameter = 90 nm and length = 60 μm) were dispersed in isopropanol at a concentration of 2.5 mg / ml and then pulled with a Mayer wire with a wire separation distance of 20 mils and pulled at a speed of 2.5 in / sec. rod (Gard Co.), to apply it to the surface of clear acrylic (polymethyl methacrylate, Synmate). After coating, the resulting nanowire network was removed by inverting the nanowire network face down onto a circular cross-section container of 100 mm x 20 mm diameter containing 40 ml of tetrahydrofuran (J.T. Baker, 99.5%, stabilized with BHT) at the bottom. The nanowire network and acrylic substrate were exposed to tetrahydrofuran vapor for 40 minutes. This formulation and procedure produced silver nanowires efficiently solvent-embedded into the surface of the acrylic substrate, exhibiting a transmittance T of 74.3% including the acrylic substrate and a sheet resistan...

example 3

[0184] Formation of transparent conductive electrodes via two-step embedding

[0185] Silver nanowires (diameter = 90 nm and length = 60 μm) were dispersed in methanol (Sigma Aldrich, 99%+) at a concentration of 1 mg / ml and then heated at 20°C and 30% humidity It was applied to polycarbonate substrates (Makrolon )superior. The vaporization rate of the methanol, together with the spray gun settings that dispense a very fine atomized cone pattern from the nozzle, produces a substantially vaporized spray before the methanol sprayed from the nozzle reaches 9 inches from the substrate. Methanol was used to effectively suspend the nanowires, and the methanol and atomization air pressure acted as propellants to transport the nanowires to the substrate. However, methanol substantially vaporizes and does not wet the substrate surface, thereby avoiding or reducing uneven wetting of the substrate surface, which can cause migration, agglomeration, coffee ring staining ( coffee-stain r...

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Abstract

Electrically conductive or semiconducting additives are embedded into surfaces of host materials for use in a variety of applications and devices. Resulting surface-embedded structures exhibit improved performance, as well as cost benefits arising from their compositions and manufacturing processes.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Application No. 61 / 308,894, filed February 27, 2010; U.S. Provisional Application No. 61 / 311,395, filed March 8, 2010; U.S. Provisional Application No. 61 / 311,396 filed on 8th, U.S. Provisional Application No. 61 / 408,773 filed on November 1, 2010, and U.S. Provisional Application No. 61 / 409,116 filed on November 2, 2010, The disclosures of these applications are incorporated herein by reference in their entirety. technical field [0003] The present invention generally relates to structures embedding additives. More specifically, the present invention relates to the structure of surface embedding additives that impart functionality such as electrical conductivity. Background technique [0004] A transparent conductive electrode ("TCE") allows light to pass through while providing a conductive path for current to flow through a device that includes the TCE. Tra...

Claims

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Application Information

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IPC IPC(8): H01B5/14
CPCH05K1/0271B05D3/007H01L31/1884H01L31/022466H01L51/5206B05D1/005H01L23/373H01L51/442H05K1/097Y02E10/50H01L31/035209H01L2924/0002Y10T428/25Y10T428/24364Y10T428/24372Y10T428/249921H10K30/82H10K59/8051H01L2924/00H10K50/81H01B1/22
Inventor 亚历山大·周·米塔尔阿尔琼·丹尼尔·斯里尼瓦斯马修·R·罗宾逊迈克尔·尤金·扬
Owner NUOVO FILM SUZHOU CHINA INC
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