Combining method of Ag2S photoelectric detection material

A technology of photoelectric detection and synthesis method, applied in chemical instruments and methods, silver compounds, silver compounds, etc., can solve the problem of no proposed reaction conditions, and achieve the effects of good photoelectric response characteristics, mild synthesis conditions and low cost

Inactive Publication Date: 2012-10-03
JILIN UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

The selection of the stabilizer and the selection of the reaction conditions are important for the Ag 2 The control of the morphology of S nanocrystals was explored, but the above literatures pursued Ag 2 The morphology of the S material does not propose an easier-to-achieve reaction condition, and further improvement is still needed in the optimal setting of the experimental temperature and reaction time.

Method used

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  • Combining method of Ag2S photoelectric detection material
  • Combining method of Ag2S photoelectric detection material
  • Combining method of Ag2S photoelectric detection material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1, a wide wavelength response range, strong photoelectric response Ag 2 The hydrothermal synthesis method of S photoelectric detection material, the steps are as follows:

[0037] Weigh 1 mmol of silver nitrate, 3 mmol of sodium thiosulfate, 0.1 mmol of sodium lauryl sulfate, and 30 milliliters of water respectively, and stir ultrasonically to make them evenly mixed to obtain a precursor solution;

[0038] The precursor solution obtained in step 1) was transferred to a stainless steel reactor lined with polytetrafluoroethylene, and reacted at a constant temperature of 180 ° C for 4 hours. After the reaction was completed, it was naturally cooled to room temperature. After washing with distilled water and absolute ethanol for 4 times, it was centrifuged, and the separated product was dried to obtain Ag 2 Powder of S photoelectric detection material.

[0039] Ag synthesized in this embodiment 2 The X-ray diffraction pattern of S photoelectric detection mater...

Embodiment 2

[0040] Embodiment 2, a wide wavelength response range, strong photoelectric response Ag 2 The hydrothermal synthesis method of S photoelectric detection material, the steps are as follows:

[0041] Weigh 1 mmol of silver nitrate, 3 mmol of thiourea, 0.15 mmol of glutathione, and 30 milliliters of water, respectively, and ultrasonically stir to make them evenly mixed to obtain a precursor solution;

[0042] The precursor solution obtained in step 1) was transferred to a stainless steel reactor lined with polytetrafluoroethylene, and reacted at a constant temperature of 180 ° C for 4 hours. After the reaction was completed, it was naturally cooled to room temperature. Alternately washed with distilled water and absolute ethanol for 4 times, then centrifuged, and the separated product was dried to obtain Ag 2 Powder of S photoelectric detection material.

[0043] Ag synthesized in this embodiment 2 The X-ray diffraction pattern of S photoelectric detection material powder is s...

Embodiment 3

[0044] Embodiment 3, a wide wavelength response range, strong photoelectric response Ag 2 The hydrothermal synthesis method of S photoelectric detection material, the steps are as follows:

[0045] Weigh 1 mmol of silver nitrate, 3 mmol of sodium thiosulfate, and 30 milliliters of water, respectively, and ultrasonically stir to mix them evenly to obtain a precursor solution;

[0046] The precursor solution obtained in step 1) was transferred to a stainless steel reactor lined with polytetrafluoroethylene, and reacted at a constant temperature of 180 ° C for 4 hours. After the reaction was completed, it was naturally cooled to room temperature. Alternately washed with distilled water and absolute ethanol for 4 times, then centrifuged, and the separated product was dried to obtain Ag 2 Powder of S photoelectric detection material.

[0047] Ag synthesized in this embodiment 2 The X-ray diffraction pattern of S photoelectric detection material powder is shown in Figure 7 , th...

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Abstract

The invention relates to a combining method of a Ag2S photoelectric detection material and belongs to the technical field of preparation of inorganic compound semiconductor materials. The method includes mixing sulfocompound and silver nitrate according to the molar ratio of 3-4:1, adding a stabilizer into the mixture, dissolving the mixture into water to prepare mixed solution, conducting reaction for 4-6 hours under the condition of 160-180 DEG C and conducting washing, centrifuging and drying to obtain Ag2S photoelectric detection material powder. The sulfocompound is thiocarbamide or sodium thiosulfate preferably, and the stabilizer is lauryl sodium sulfate or glutathione preferably. The combining method adopts a hydrothermal synthesis method, and is simple in whole operation process, good in repeatability and low in cost. Prepared Ag2S has good photoelectric response characteristics-wide band and high photoelectric response and can be applied to optical detectors.

Description

technical field [0001] The invention relates to a wide wavelength response range, strong photoelectric response Ag 2 The invention discloses a hydrothermal synthesis method of S photoelectric detection materials, belonging to the technical field of preparation of inorganic compound semiconductor materials. Background technique [0002] With the development of photoelectric detection technology, semiconductor photodetectors that use semiconductor photoelectric properties for response transmission have the advantages of high efficiency and accuracy and are widely used. According to the division of the response interval of the incident light of the photodetector, it can be divided into ultraviolet detector, visible light detector, infrared detector and so on. Due to the good photoelectric properties of Si in the visible light range, the visible light detectors at this stage still use Si material as the core component of the device. The elements involved in the core materials ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G5/00
Inventor 杨皖实王德军谢腾峰蒋腾飞
Owner JILIN UNIV
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