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Method for preparing SnS2 nano hexagonal tablets through high-temperature liquid phase by using injection method

A technology of hexagonal tablet and injection method, which is applied in nanotechnology, chemical instruments and methods, inorganic chemistry, etc., can solve the problem of less thin film, and achieve the effects of simple operation, easy scale, and good application prospects

Inactive Publication Date: 2011-07-27
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in general, SnS 2 There is still relatively little research on the preparation of thin films

Method used

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  • Method for preparing SnS2 nano hexagonal tablets through high-temperature liquid phase by using injection method
  • Method for preparing SnS2 nano hexagonal tablets through high-temperature liquid phase by using injection method
  • Method for preparing SnS2 nano hexagonal tablets through high-temperature liquid phase by using injection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Measure 15mL of oleylamine into a round-bottomed flask, slowly raise the temperature to 120°C under magnetic stirring, protect it with nitrogen, and keep it stable at 120°C for half an hour, remove water and dissolved oxygen, then raise the temperature to 320°C, and inject 0.02mol into it / L 5 mL of oleylamine solution of tin diethyldithiocarbamate precursor, the solution turns yellow immediately. After reacting for 30 min, it was naturally cooled to room temperature. The resulting golden yellow SnS 2 The precipitate was washed and separated with excess ethanol to obtain SnS 2 Nano hexagonal sheet.

Embodiment 2

[0021] Measure 15mL of oleic acid into a round-bottomed flask, slowly raise the temperature to 120°C under magnetic stirring, protect it with nitrogen, and keep it stable at 120°C for half an hour, remove water and dissolved oxygen, then raise the temperature to 340°C, and inject 0.05mol into it / L 10 mL of oleylamine solution of tin diethyldithiocarbamate precursor, the solution turns yellow immediately. After reacting for 30 min, it was naturally cooled to room temperature. The resulting golden yellow SnS 2 The precipitate was washed and separated with excess ethanol to obtain SnS 2 Nano hexagonal sheet.

Embodiment 3

[0023] Measure 15mL of octadecene into a round bottom flask, slowly raise the temperature to 120°C under magnetic stirring, protect it with nitrogen, and keep it stable at 120°C for half an hour, remove water and dissolved oxygen, then raise the temperature to 320°C, inject 0.07 mol / L oleylamine solution of tin diethyldithiocarbamate precursor is 12mL, and the solution turns yellow immediately. After reacting for 60 min, it was naturally cooled to room temperature. The resulting golden yellow SnS 2 The precipitate was washed and separated with excess ethanol to obtain SnS 2 Nano hexagonal sheet.

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Abstract

The invention relates to a method for preparing SnS2 nano hexagonal tablets through high-temperature liquid phase by using an injection method. The method comprises the following steps: heating an organic solvent to 120-130 DEG C while stirring under the protection of nitrogen; then stably keeping 120-130 DEG C for 0.5-2 hours; heating to 200-360 DEG C; injecting a 0.02-1mol / L organic amine solution of tin diethyl dithiocarbamate precursor into the organic solvent, wherein the volume ratio of the tin precursor solution to the organic solvent is (1-5):3; naturally cooling down to room temperature after reacting for 2-60 minutes; and washing, and separating precipitate to obtain the SnS2 nano hexagonal tablets. The method is simple to operate and has no requirement for equipment; utilized solvents are all environment-friendly, and do not generate highly toxic substances; and the obtained product can be made into ink and used for printing solar cells, thereby being easy to implement large-scale production and having good application prospects.

Description

technical field [0001] The present invention belongs to SnS 2 The field of preparation of thin-film solar cell materials, especially a high-temperature liquid phase preparation of SnS by injection method 2 A method for nanohexagonal sheets. Background technique [0002] In the current human energy consumption structure, mineral resources such as petroleum, coal, and natural gas account for more than 80% of human energy supply. In addition to the limitation caused by non-renewability of this kind of traditional primary energy, another disadvantage is the pollution to the environment after use, which is also the two major problems facing human beings in energy and environment. Therefore, energy security and greenhouse gas emission reduction have become the fundamental driving force behind the development of the global solar photovoltaic power generation industry. [0003] At present, the solar cells used in the market are still mainly monocrystalline silicon / polycrystalline...

Claims

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Application Information

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IPC IPC(8): C01G19/00B82Y40/00
Inventor 陈志钢唐明华杨健茂蒋扉然田启威李文尧
Owner DONGHUA UNIV
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