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Method for preparing light-absorbing material layer by using chloride

A technology of light-absorbing materials and trimethylammonium chloride, which is applied in the preparation of amino compounds, organic compounds, chemical instruments and methods, etc., and can solve problems such as environmental pollution, complicated processes, and poor precision

Inactive Publication Date: 2018-09-07
程桂平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The method for preparing a light-absorbing material layer in the prior art is complex in process, poor in precision, and easily leads to environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A method for preparing a light-absorbing material layer, comprising:

[0012] Step 1: configure 13.5ml, 40wt% methylamine aqueous solution, 15.0ml, 57wt% hydrochloric acid aqueous solution and 2ml dimethylformamide solution;

[0013] Step 2: Stir and mix the above three solutions at 0°C under nitrogen for 2 hours, make it react to trimethylammonium chloride, and use a cyclone concentrator to remove the solvent, dry it into a white powder, and wash the above-mentioned solution with diethyl ether Powder 3 times, and dry at 60°C under vacuum until the next day;

[0014] Step 3: Add the above-mentioned trimethylammonium chloride powder and lead chloride powder to 15.8ml of organic solvent γ-butyrolactone in an equimolar ratio of 1:1 and mix them for 12 hours at 60°C under nitrogen to form a concentration It is a mixed solution of 10.3 wt% perovskite structure light-absorbing material;

[0015] Step 4: Then take the mixed solution above, and spin-coat it at a speed of 6000...

Embodiment 2

[0018] A method for preparing a light-absorbing material layer, comprising:

[0019] Step 1: configure 13.5ml, 40wt% methylamine aqueous solution, 15.0ml, 57wt% hydrochloric acid aqueous solution and 2.1ml dimethylformamide solution;

[0020] Step 2: Stir and mix the above three solutions at 0°C under nitrogen for 2 hours, make it react to trimethylammonium chloride, and use a cyclone concentrator to remove the solvent, dry it into a white powder, and wash the above-mentioned solution with diethyl ether Powder 3 times, and dry at 60°C under vacuum until the next day;

[0021] Step 3: Add the above-mentioned trimethylammonium chloride powder and lead chloride powder to 15.8ml of organic solvent γ-butyrolactone in an equimolar ratio of 1:1 and mix them for 12 hours at 60°C under nitrogen to form a concentration It is a mixed solution of 10.3 wt% perovskite structure light-absorbing material;

[0022] Step 4: Then take the mixed solution above, and spin-coat it at a speed of 60...

Embodiment 3

[0025] A method for preparing a light-absorbing material layer, comprising:

[0026] Step 1: configure 13.5ml, 40wt% methylamine aqueous solution, 15.0ml, 57wt% hydrochloric acid aqueous solution and 2.2ml dimethylformamide solution;

[0027] Step 2: Stir and mix the above three solutions at 0°C under nitrogen for 2 hours, make it react to trimethylammonium chloride, and use a cyclone concentrator to remove the solvent, dry it into a white powder, and wash the above-mentioned solution with diethyl ether Powder 3 times, and dry at 60°C under vacuum until the next day;

[0028] Step 3: Add the above-mentioned trimethylammonium chloride powder and lead chloride powder to 15.8ml of organic solvent γ-butyrolactone in an equimolar ratio of 1:1 and mix them for 12 hours at 60°C under nitrogen to form a concentration It is a mixed solution of 10.3 wt% perovskite structure light-absorbing material;

[0029] Step 4: Then take the mixed solution above, and spin-coat it at a speed of 60...

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PUM

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Abstract

The invention discloses a method for preparing a light-absorbing material layer. The method comprises the steps of (1) preparing 13.5ml of 40wt% methylamine water solution, 15.0ml of 57wt% hydrochloric acid aqueous solution and 2ml of dimethylformamide solution; and (2) stirring and mixing the three solutions under nitrogen at 0 DEG C for 2h, reacting to form trimethyl ammonium chloride, removinga solvent by using a cyclotron thickener, drying to form white powder, washing the powder by using diethyl ether for three times and carrying out vacuum drying at 60 DEG C until the next day.

Description

technical field [0001] The invention relates to a method for preparing a light-absorbing material layer. Background technique [0002] The method for preparing a light-absorbing material layer in the prior art is complicated in process, poor in precision, and easily leads to environmental pollution. Contents of the invention [0003] A method for preparing a light-absorbing material layer, comprising: [0004] Step 1: configure 13.5ml, 40wt% methylamine aqueous solution, 15.0ml, 57wt% hydrochloric acid aqueous solution and 2ml dimethylformamide solution; [0005] Step 2: Stir and mix the above three solutions at 0°C under nitrogen for 2 hours, make it react to trimethylammonium chloride, and use a cyclone concentrator to remove the solvent, dry it into a white powder, and wash the above-mentioned solution with diethyl ether Powder 3 times, and dry at 60°C under vacuum until the next day; [0006] Step 3: Add the above-mentioned trimethylammonium chloride powder and lead...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/48H01L51/42C07C209/00C07C211/65
CPCC07C209/00C07C211/65H10K71/12H10K30/30Y02E10/549
Inventor 程桂平
Owner 程桂平