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Synthetic method of morphology-controllable organic-inorganic hybrid bismuth-based crystal

A synthetic method and organic technology, applied in the field of organic-inorganic hybrid material preparation, can solve problems such as change

Inactive Publication Date: 2016-11-02
XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the reported studies on changing the crystallinity and morphology of organic-inorganic hybrid materials by using different solvents are limited to solar cell devices, and there are few independent studies on the effect of solvents on solar active components-organic-inorganic hybrid materials. Effect of Crystal Morphology

Method used

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  • Synthetic method of morphology-controllable organic-inorganic hybrid bismuth-based crystal
  • Synthetic method of morphology-controllable organic-inorganic hybrid bismuth-based crystal
  • Synthetic method of morphology-controllable organic-inorganic hybrid bismuth-based crystal

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Experimental program
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Effect test

Embodiment 1

[0015] a. 0.103g Bi 2 S 3 Dissolve in 2mL of 57% hydroiodic acid and filter with 0.45μm membrane;

[0016] b. 0.382g CH 3 NH 3 I was dissolved in 12 mL of absolute ethanol, and the solution obtained in step a was added dropwise with constant stirring to obtain a mixed solution;

[0017] c. Move the solution obtained in step b into a 50mL autoclave at a temperature of 140°C, a heating rate of 1°C / min, keep for 24 hours, naturally cool to room temperature, and then wash with absolute ethanol 3 times, and vacuum dry at 60°C , The target product hexagonal organic-inorganic hybrid bismuth-based crystal ( figure 1 ).

Embodiment 2

[0019] a. 0.103g Bi 2 S 3 Dissolve in 2mL of 57% hydroiodic acid and filter with 0.45μm membrane;

[0020] b. 0.382g CH 3 NH 3 I was dissolved in 12 mL of absolute ethanol, and then 800 μL of N,N-dimethylformamide was added, and the solution obtained in step a was added dropwise under constant stirring to obtain a mixed solution;

[0021] c. Move the mixed solution obtained in step b into a 50mL autoclave at a temperature of 140°C, a heating rate of 1°C / min, keep for 24 hours, naturally cool to room temperature, and then wash 3 times with absolute ethanol at a temperature of 60°C under vacuum After drying, the target product rod-shaped organic-inorganic hybrid bismuth-based crystal ( figure 2 ).

Embodiment 3

[0023] a. 0.103g Bi 2 S 3 Dissolve in 2mL of 57% hydroiodic acid and filter with 0.45μm membrane;

[0024] b. 0.382g CH 3 NH 3 I was dissolved in 12 mL of absolute ethanol, and then 800 μL of pyridine was added, and the solution obtained in step a was added dropwise under constant stirring to obtain a mixed solution;

[0025] c. Move the mixed solution obtained in step b into a 50mL autoclave at a temperature of 140°C, a heating rate of 1°C / min, keep for 24 hours, naturally cool to room temperature, and then wash 3 times with absolute ethanol at a temperature of 60°C under vacuum After drying, the target product prismatic organic-inorganic hybrid bismuth-based crystal ( image 3 ).

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Abstract

The invention relates to a synthetic method of morphology-controllable organic-inorganic hybrid bismuth-based crystal. Based on the principle that a crystalline material is formed by a solvothermal reaction, the synthetic method is completed by steps of bismuth-based material solution synthesis, solvothermal crystal preparation, product washing and vacuum drying. By controlling types of solvents, crystal in different morphologies is controllably synthesized. The solvothermal preparation method has advantages of simple operation, mild condition, simple process and the like. According to the invention, the influence of solvents on crystallinity and growth mechanism of an organic-inorganic hybrid material can be studied, thus providing theoretical basis for the design and research and development of a novel organic-inorganic hygrid material.

Description

Technical field [0001] The invention belongs to the technical field of organic-inorganic hybrid material preparation, and specifically relates to a method for synthesizing non-toxic and stable bismuth-based materials. Background technique [0002] With the rapid development of the global economy and rapid population growth, the demand for energy is increasing day by day, and it has been discovered that the amount of fossil energy is limited. Solar energy is the most abundant energy source in the world. Converting solar energy into directly usable energy is an important scientific method to alleviate the energy crisis. Perovskite solar cells are developing rapidly in the solar cell market with their high energy conversion efficiency and low production cost. However, the commonly used active layer of perovskite solar cells-methylamine lead iodide and its similar substances have shortcomings such as instability and lead toxicity, which restrict the commercialization of perovskite s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/54C30B7/10H01L51/42
CPCC30B7/10C30B29/54H10K30/00Y02E10/549
Inventor 王传义赵赫李英宣
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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