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Organic molecule capsulated metal nanoparticles as well as preparation method and application thereof

A technology of nano metal particles and organic molecules, applied in the fields of nanotechnology, nanotechnology, nanotechnology for information processing, can solve the problems of reducing the photoelectric conversion efficiency and service life of the device, unreasonable cost structure, etc., to improve the photoelectricity. /Effect of electro-optical conversion efficiency, excellent organic solubility, production cost and time reduction

Inactive Publication Date: 2013-04-03
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This temperature range is unacceptable for many organic polymer films
Such a high-temperature process will lead to many defects (Dark Spots) on the interface between the organic polymer film and the metal electrode, thereby greatly reducing the photoelectric conversion efficiency and service life of the device (see Figure 1: 200~300℃ high temperature annealing process will lead to the contact between the organic polymer film and the metal There are many defects (Dark Spots) on the interface)
Moreover, the process technology of vacuum coating cannot be matched with printing technology to manufacture large-area and ultra-large-area thin-film photovoltaic cells and flexible electronic devices
Moreover, the use of precious metals such as gold and silver is not cost-structurally justifiable for printing large-area and relatively inexpensive organic electronics.

Method used

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  • Organic molecule capsulated metal nanoparticles as well as preparation method and application thereof
  • Organic molecule capsulated metal nanoparticles as well as preparation method and application thereof
  • Organic molecule capsulated metal nanoparticles as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0025] In order to prepare nano-metals compatible with organic polymer interfaces, this application provides nano-metal indium particles encapsulated by organic molecules (alkanethiols). An alkylthiol can be used: hexanethiol ( Hexanethiol). The size of nano-metal indium particles can be determined by organic alkylthiol and in 3+ to control the molar ratio. The detailed process of this synthesis process method sees figure 1 shown. Concrete process steps are as follows:

[0026] a. First, 2.0 grams of indium chloride (InCl 3 ) was dissolved in 5.0ml of 0.06m HCl solution, and then dissolved in 10.0ml of 20%wt hexane (Hexane) solution, while using 0.4ml of tetrapolyethylene glycol monolauryl ether (C 12 E. 4 : Tetraethylene glycol monododecyl ether) is added into the solution as a non-ionic surfactant to form a solution containing water molecules, surfactants, organic solvents and In 3+ microemulsion molecular clusters.

[0027] b. Add a quantitative amount of hexanethiol...

Embodiment 2

[0031]The preparation method of nano-metal indium particles encapsulated by organic molecules, first dissolves indium chloride into hydrochloric acid, wherein the mass ratio of HCl to indium chloride is 175:1, and then adds it into the hexane solution, and the indium chloride and hexane The mass ratio of alkanes is 4: 1, uses tetrapolyethylene glycol monolauryl ether to add in the solution simultaneously as nonionic surfactant, and the mass ratio of indium chloride and tetrapolyethylene glycol monolauryl ether is 4: 1, with This formation contains water molecules, surfactants, organic solvents and In 3+ The microemulsion micelles molecular group; Quantitative hexanethiol is added in the above-mentioned solution, hexanethiol: in 3+ The molar ratio is 4:1; Metal indium is reduced from the above-mentioned organic solvent using excessive reducing agent sodium borohydride, sodium borohydride: in 3+ The molar ratio is 1.5:1, forming nano-sized metal indium particles encapsulated by...

Embodiment 3

[0034] The preparation method of nano-metal indium particles encapsulated by organic molecules, first dissolves indium chloride into hydrochloric acid, wherein the mass ratio of HCl to indium chloride is 200:1, and then adds it into the hexane solution, and dissolves indium chloride and hexane The mass ratio of alkanes is 2:5, uses tetrapolyethylene glycol monolauryl ether to add in the solution simultaneously as nonionic surfactant, and the mass ratio of indium chloride and tetrapolyethylene glycol monolauryl ether is 5:1, with This formation contains water molecules, surfactants, organic solvents and In 3+ The microemulsion micelles molecular group; Quantitative hexanethiol is added in the above-mentioned solution, hexanethiol: in 3+ The molar ratio is 1:8; Metal indium is reduced from the above-mentioned organic solvent using excessive reducing agent sodium borohydride, sodium borohydride: in 3+ The molar ratio is 1:1, forming nano-sized metal indium particles encapsulated...

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Abstract

The invention relates to organic molecule capsulated metal nanoparticles as well as a preparation method and application thereof, wherein nanometer metallic indium is capsulated by organic molecules, and the organic molecules are alkyl sulfhydryl which is hexanethiol or butyl mercaptan. The metallic nanoparticles show excellent organic solubility, organic surface wettability, adhesivity and the like and can be printed or spin-coated on an organic film very efficiently to form a uniform, continuous and flat metal contact film. According to the invention, the defect of an interface between a metal electrode and a film device is remarkably overcome, so that the surface contact resistance of the device is reduced, the reliability of the device is remarkably improved and the photoelectric / electro-optical conversion efficiency is improved; the production process of the organic molecule capsulated metal nanoparticles is energy-saving and environmentally-friendly, and the utilization rate of the electrode material nearly reaches 100 percent; and the technical difficulty in manufacturing the metal electrode of a large-area and ultralarge-area photoelectronic device is solved.

Description

[0001] technical field [0002] The invention relates to a nanometer metal particle encapsulated by organic molecules, a preparation method thereof and an application in electronic components. [0003] Background technique [0004] The rapid development of new thin-film solar photovoltaic cells and organic electronics based on organic polymer materials represents the emergence of a whole new industry. The well-known British company IDTechex predicts that the global sales of new organic electronic devices will reach about 47 billion US dollars per year in 2018, and by 2028, this figure will increase by leaps and bounds to about 380 billion US dollars per year. In the output value distribution of the entire industry, about 50%-60% comes from various supporting materials, of which metal electrode materials account for about 8%-10%. [0005] In the process of comprehensive commercial industrialization, there are still many technical difficulties to be overcome in organic elect...

Claims

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Application Information

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IPC IPC(8): H01L51/00B82Y10/00
Inventor 史方王晓晨孔令宇虞磊潘毅韩建林
Owner NANJING UNIV
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