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Preparation method of near-infrared light codoped silver sulfide nano-luminescence material

A nano-luminescent material and near-infrared light technology, which is applied in the field of nano-materials, can solve problems such as unfavorable large-scale industrial production, organic solvents are harmful to health, and complex production processes, and achieve good application prospects, easy operation, and simple methods.

Active Publication Date: 2017-12-22
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology has several advantages over existing methods for producing light sources such as LED's (light emitting diodes). It can be easily operated at different temperatures with less expensive components compared to traditional lasers while still providing excellent performance. Additionally it allows for precise control over its emission wavelength range without requiring complicated equipment like filters that are used during manufacturing processes. Overall this makes these technologies useful for various applications where they were previously possible but their technical effect will likely improve upon them overall.

Problems solved by technology

This patented technical problem addressed in this patents relates to developing new types of photovoltaics (PV) devices based upon quantum dot technology due to their potential applications in various fields like medical diagnoses, electronic waste management, bioinformatics, and other areas where photoelectric effects play important roles. However, current techniques involving quantum dods require expensive equipment and involve complex processes requiring specific reagents. To address these issues, there exists a promising alternative approach called Quantum Layer Thermally Excitable Light (QLTE). QLD refers to a type of optoelectron device made up of two layers - one layer contains quantum dodes while another layer includes quantum doles containing heavy atoms. By combining quantum dyes together, they form larger molecules that emit strong greenish yellow color signals when excited by infrared lights. These quantum dodets also exhibit improved emission characteristics over conventional PbSe films but less effective than Cadmium Sulfur Tell Blue (CadmaTe), making them difficult to use in practice.

Method used

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  • Preparation method of near-infrared light codoped silver sulfide nano-luminescence material
  • Preparation method of near-infrared light codoped silver sulfide nano-luminescence material
  • Preparation method of near-infrared light codoped silver sulfide nano-luminescence material

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Experimental program
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Effect test

Embodiment 1

[0033](1) Mix 1.24g (0.003mol) silver stearate and 0.025g manganese stearate with 0.016g, 0.06g, 0.12g europium stearate respectively, so that the molar ratio of manganese stearate to silver stearate The molar ratio of europium stearate to silver stearate is 0.8:100, 3:100, and 6:100 respectively, and it is completely dissolved in 30ml of cyclohexane at 80°C, and 3ml of oleic acid is added, and magnetically stirred To solution transparency, obtain doping manganese stearate, europium stearate and silver stearate cyclohexane solution;

[0034] (2) Take by weighing 2.16g (0.009mol) sodium sulfide, be dissolved in 30ml deionized water completely at normal temperature, stir, obtain sodium sulfide aqueous solution;

[0035] (3) the sodium sulfide aqueous solution prepared in step (2) is slowly added in the manganese stearate, europium stearate and silver stearate silver cyclohexane solution prepared in step (1), the volume of both The ratio is 1:1, stirred evenly and transferred to...

Embodiment 2

[0038] (1) Mix 1.24g (0.003mol) silver stearate and 0.228g yttrium stearate with 0.016g, 0.06g, 0.12g, 0.24g europium stearate respectively to make yttrium stearate and silver stearate The molar ratio is 8:100, the molar ratios of europium stearate and silver stearate are respectively 0.8:100, 3:100, 6:100, and 12:100, completely dissolved in 30ml cyclohexane at 80°C, Add 3ml of oleic acid, stir magnetically until the solution is transparent, and obtain a solution doped with europium stearate, yttrium stearate and silver stearate cyclohexane;

[0039] (2) Take by weighing 2.16g (0.009mol) sodium sulfide, be dissolved in 30ml deionized water completely at normal temperature, stir, obtain sodium sulfide aqueous solution;

[0040] (3) the aqueous sodium sulfide solution prepared in step (2) is slowly added to the doped europium stearate, yttrium stearate and silver stearate cyclohexane solution prepared in step (1), the volume of both The ratio is 1:1, stirred evenly and transfe...

Embodiment 3

[0043] (1) Mix 1.24g (0.003mol) silver stearate and 0.025g manganese stearate with 0.0285g, 0.1425g, 0.2851g yttrium stearate respectively, so that the molar ratio of yttrium stearate to silver stearate 1:100, 5:100, 10:100 respectively, the molar ratio of manganese stearate to silver stearate is 1:100, completely dissolved in 30ml of cyclohexane at 80°C, add 3ml of oleic acid, and magnetically stir To solution transparency, obtain doping yttrium stearate, manganese stearate and silver stearate cyclohexane solution;

[0044] (2) Take by weighing 2.16g (0.009mol) sodium sulfide, be dissolved in 30ml deionized water completely at normal temperature, stir, obtain sodium sulfide aqueous solution;

[0045] (3) the aqueous sodium sulfide solution prepared in step (2) is slowly added to the doped yttrium stearate, manganese stearate and silver stearate solution prepared in step (1), the volume of both The ratio is 1:1, stirred evenly and transferred to a polytetrafluoroethylene reac...

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Abstract

The invention relates to a preparation method of a near-infrared light codoped silver sulfide nano-luminescence material. The preparation method comprises the steps of synthesizing a mixed precursor, synthesizing a sodium sulfide precursor, and synthesizing the near-infrared light codoped silver sulfide nano-luminescence material. The preparation method is simple, easy in operation, mild in reaction conditions, low in cost and good in operability; and the obtained Ag2S:Mn:Eu nano-luminescence material or Ag2S:Eu:Mn nano-luminescence material, the obtained Ag2S:Eu:Y nano-luminescence material or Ag2S:Y:Eu nano-luminescence material, the obtained Ag2S:Mn:Y nano-luminescence material or Ag2S:Y:Mn nano-luminescence material and the obtained Ag2S:Y:Mn:Eu nano-luminescence material or Ag2S:Y:Eu:Mn nano-luminescence material have good crystallinity and high fluorescence intensity, are uniformly and stably dispersed and have good application prospects in the aspects of sensors, the production of nano-laser materials, DNA quantitative analysis and the like.

Description

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Claims

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Application Information

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Owner DONGHUA UNIV
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