Metal nanoparticles stabilized with a carboxylic acid-organoamine complex

A technology of metal nanoparticles and amine complexes, which is applied in nanotechnology, nanotechnology, nanotechnology, etc. for materials and surface science, and can solve problems such as dimensional stability and plastic substrates.

Inactive Publication Date: 2009-06-10
XEROX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although some specialty plastic substrates can withstand annealing temperature...

Method used

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  • Metal nanoparticles stabilized with a carboxylic acid-organoamine complex

Examples

Experimental program
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Effect test

Embodiment 1

[0092] Sodium hydroxide solution (50 mL) was added to a butyric acid solution (50 mL) in methanol. After stirring the mixture for 10 minutes, silver nitrate (9.86 g, 0.058 mol) in distilled water (50 mL) was added, forming a white precipitate of silver propionate. After the precipitate was filtered, washed with distilled water and methanol, and dried in vacuo, white silver butyrate (10 g) was obtained, wherein the percent yield of the previous reaction was 90.7%.

[0093] Silver butyrate (1.95 g, 10 mmol) and 1-hexadecylamine (6.04 g, 25 mmol) were dissolved in 20 mL of toluene by heating the mixture to 50°C until the silver butyrate was completely dissolved. This dissolution occurs within approximately 5 minutes. To this solution was added a solution of phenylhydrazine (0.595 g, 5.5 mmol) in toluene (10 mL) and stirred for 5 minutes. The resulting reaction mixture was stirred at 50°C for an additional 30 minutes before cooling to room temperature. Next, the mixture was add...

Embodiment 2-5

[0097] In Examples 2-5, the procedure used in Example 1 was followed except that in Example 2 (valeric acid), Example 3 (hexanoic acid), Example 4 (octanoic acid) and Example 5 (undecene acid) using different carboxylic acids. In addition, Examples 4 and 5 used a different organic amine (dodecylamine).

[0098] Table 1: Properties of silver nanoparticles made from different silver carboxylates and organic amines

[0099]

[0100] Table 1 shows that, depending on temperature, silver nanoparticles with different carboxylic acid-organic amine stabilizers are extremely stable over a period of 7 to 13 days and can be converted to high Conductive film, the conductivity is 2.9×10 4 to 3.9×10 4 S / cm.

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Abstract

Metal nanoparticles with a stabilizer complex of a carboxylic acid-amine on a surface thereof are formed by reducing a metal carboxylate in the presence of an organoamine and a reducing agent compound. The metal carboxylate may include a carboxyl group having at least four carbon atoms, and the amine may include an organo group having from 1 to about 20 carbon atoms.

Description

technical field [0001] The present invention relates to metal nanoparticles stabilized with carboxylic acid-organic amine complexes. Background technique [0002] Fabrication of electronic circuit components using liquid deposition technology has attracted much attention because this technology offers the potential of traditional mainstream amorphous silicon technology for electronic applications such as thin film transistors (TFTs), light emitting diodes (LEDs), RFID tags, photovoltaic cells, etc. Low cost alternative. However, the deposition and / or patterning of functional electrodes, pixel pads and conductive traces, lines and tracks that meet the conductivity, processing and cost requirements of practical applications has become a huge challenge. [0003] Prior approaches utilizing conjugated polymers such as polyaniline, carbon black pastes, and metal pastes suffer from low electrical conductivity, poor operational stability, and high cost. Another approach using orga...

Claims

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Application Information

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IPC IPC(8): B22F9/24H01L51/00B22F1/0545B22F1/142
CPCB22F9/24B22F1/0085B22F2999/00H05K1/097B22F1/0022B82Y30/00Y10T428/2991B22F1/0545B22F1/142B22F1/10
Inventor Y·李J·李H·潘P·F·史密斯H·K·马哈巴迪
Owner XEROX CORP
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