A kind of nano-gold submicron film, its preparation and application

A gold submicron and nano-gold technology, which is applied in the field of submicron metal particle thin film functional material devices, can solve the problems of low sensitivity, weak near-ultraviolet signal, high coating cost, etc., and achieve the effect of suitable growth rate and low stacking density

Active Publication Date: 2019-09-24
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing near-ultraviolet resonance instrument detection probes usually use magnetron sputtering coating technology, the coating cost is high, the film body surface area is small, the near-ultraviolet signal is weak, so the sensitivity is low, etc.

Method used

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  • A kind of nano-gold submicron film, its preparation and application
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  • A kind of nano-gold submicron film, its preparation and application

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Experimental program
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Effect test

Embodiment 1

[0045] The nano-gold submicron film is prepared according to the following method, and the preparation flow chart is as follows figure 1 Shown:

[0046] (1) To obtain a monodisperse spherical gold nanoparticle sol with uniform particle size, add deionized water and 1% HAuCl in conical flask A 4 (1 milliliter) volume ratio is 79:1; In Erlenmeyer flask B, add the C that mass fraction is 1% 6 h 5 Na 3 o 7 2H 2 O (4 ml) solution, 1% tannic acid (C 76 h 52 o 46 ) solution 50μl, K concentration of 0.1mol / L 2 CO 3 12.5 μl of aqueous solution and deionized water, the volume ratio is 320:4:1:2556.

[0047] (2) The volume ratio of Erlenmeyer flask A to Erlenmeyer flask B solution is 5:1. Put the Erlenmeyer flask A at a constant temperature of 60°C and put it in a water bath magnetic stirrer, stir evenly to 60°C, stir the Erlenmeyer flask B evenly for 15 minutes, then quickly pour it into the Erlenmeyer flask A, and mix HAuCl in the solution after mixing 4 The concentration ...

Embodiment 2

[0058] The nano-gold submicron film is prepared according to the following method, and the preparation flow chart is as follows figure 1 Shown:

[0059] (1) To obtain a monodisperse spherical gold nanoparticle sol with uniform particle size, add deionized water and 1% HAuCl in conical flask A 4 (1 milliliter) volume ratio is 79:1; In Erlenmeyer flask B, add the C that mass fraction is 1% 6 h 5 Na 3 o 7 2H 2 O (4 ml) solution, 1% tannic acid (C 76 h 52 o 46 ) solution 100μl, K concentration of 0.1mol / L 2 CO 3 25 μl of aqueous solution and deionized water, the volume ratio is 640:4:1:2556.

[0060] (2) The volume ratio of Erlenmeyer flask A to Erlenmeyer flask B solution is 5:1. Put the Erlenmeyer flask A at a constant temperature of 60°C and put it in a water bath magnetic stirrer, stir evenly to 60°C, stir the Erlenmeyer flask B evenly for 15 minutes, then quickly pour it into the Erlenmeyer flask A, and mix HAuCl in the solution after mixing 4 The concentration i...

Embodiment 3

[0065] The nano-gold submicron film is prepared according to the following method, and the preparation flow chart is as follows figure 1 Shown:

[0066] (1) To obtain a monodisperse spherical gold nanoparticle sol with uniform particle size, add deionized water and 1% HAuCl in conical flask A 4 (1 milliliter) volume ratio is 79:1; In Erlenmeyer flask B, add the C that mass fraction is 1% 6 h 5 Na 3 o 7 2H 2 O (4 ml) solution, 1% tannic acid (C 76 h 52 o 46 ) solution 500μl, K concentration of 0.1mol / L 2 CO 3 125 μl of aqueous solution and deionized water, the volume ratio is 640:4:1:2556.

[0067] (2) The volume ratio of Erlenmeyer flask A to Erlenmeyer flask B solution is 5:1. Put the Erlenmeyer flask A at a constant temperature of 60°C and put it in a water bath magnetic stirrer, stir evenly to 60°C, stir the Erlenmeyer flask B evenly for 15 minutes, then quickly pour it into the Erlenmeyer flask A, and mix HAuCl in the solution after mixing 4 The concentration ...

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Abstract

The invention belongs to the field of submicron metal particle film functional material devices, and particularly relates to a nanogold submicron film and application thereof. The nanogold submicron film is arranged on a base, the particle size range of the nanogold submicron film is 5-14 nm, and the thickness is 150-550 nm; and the nanogold submicron film forms a resonance absorption band in a near ultraviolet region and shows resonance coherence characteristics of local surface plasmas. The nanogold submicron film can be used as a detecting element of a near ultraviolet resonance instrumentor a near ultraviolet detector.

Description

technical field [0001] The invention belongs to the field of submicron metal particle film functional material devices, and more specifically relates to a nanometer gold submicron film, its preparation and application. Background technique [0002] Compared with its bulk film materials, nano-gold particle submicron film materials have lower density, larger body surface area and unique thermal, mechanical, electromagnetic and catalytic properties of nanoparticles. Measurement and other fields have broad application prospects. [0003] Existing near-ultraviolet resonance detection probes usually use magnetron sputtering coating technology, which has high coating cost, small film body surface area, and weak near-ultraviolet signal, so the sensitivity is low. Contents of the invention [0004] For the above defects or improvement needs of the prior art, the present invention provides a nano-gold submicron film, its preparation and application, the purpose of which is to provi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/44B82Y30/00
Inventor 包晨婷易林董烁成乐笑黎诗剑
Owner HUAZHONG UNIV OF SCI & TECH
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