Thiazole amine salt material for preparing two-dimensional perovskite structure and preparation method thereof

A technology of perovskite structure and thiazolamide is applied in the preparation of two-dimensional perovskite structure thiazolamide salt materials and the field of preparation thereof. Conducive to transportation and transfer, and the effect of improving transmission performance

Inactive Publication Date: 2019-01-18
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, two-dimensional perovskite materials also have problems: adding an organic layer is not conductive, causing charge accumulation and electron-hole recombination; MA + The van der Waals force and π–π interaction with the organic layer cannot rotate, causing one layer to be positively charged and one layer to be negatively charged; crystal orientation is not conducive to charge transport and affects battery performance

Method used

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  • Thiazole amine salt material for preparing two-dimensional perovskite structure and preparation method thereof
  • Thiazole amine salt material for preparing two-dimensional perovskite structure and preparation method thereof
  • Thiazole amine salt material for preparing two-dimensional perovskite structure and preparation method thereof

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Effect test

Embodiment 1

[0029] A thiazole amine salt material for preparing a two-dimensional perovskite structure, the chemical formula is as follows: C 3 h 4 NSI. It is prepared from thiazole and hydrogen iodide as raw materials.

[0030] The preparation steps are as follows:

[0031] (1) Weigh a certain mass of thiazole and hydrogen iodide according to the ratio of substances to 1:1 and dissolve them in deionized water respectively to obtain solution I and solution II;

[0032] (2) Solution I was stirred for 15 minutes, then added to solution II, maintained at 10°C for 10 hours, removed water, washed with EA, and recrystallized with ethanol after washing to obtain thiazolamine salt material.

Embodiment 2

[0034] A thiazole amine salt material for preparing a two-dimensional perovskite structure, the chemical formula is as follows: C 3 h 4 NSBr. It is prepared from thiazole and hydrogen bromide as raw materials.

[0035] The preparation steps are as follows:

[0036] (1) Weigh a certain mass of thiazole and hydrogen bromide according to the ratio of 1:1 and dissolve them in deionized water respectively to obtain solution I and solution II;

[0037] (2) Add solution II to solution I, maintain 30°C for 2 hours, remove water, wash with EA, and recrystallize with propanol after washing to obtain thiazolamine salt material.

Embodiment 3

[0039] A thiazole amine salt material for preparing a two-dimensional perovskite structure, the chemical formula is as follows: C 3 h 4 NSI. It is prepared from thiazole and hydrogen iodide as raw materials.

[0040] The preparation steps are as follows:

[0041] (1) Weigh a certain mass of thiazole and hydrogen iodide according to the ratio of substances to 1:1 and dissolve them in deionized water respectively to obtain solution I and solution II;

[0042] (2) Solution I was stirred for 35 minutes, then added to solution II, maintained at 50°C for 12 hours, removed water, washed with EA, and recrystallized with methyl ether after washing to obtain thiazolamine salt material.

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Abstract

The invention discloses a thiazole amine salt material for preparing a two-dimensional perovskite structure and a preparation method thereof. The thiazole amine salt material has the chemical formula:C3H4NSX, wherein the X element is any halogen element; and the thiazole amine salt material is prepared from thiazole and a material containing halogen acid in a weight ratio of 1 to 1. The preparation method is simple, does not pollute the environment, and is convenient for large-scale production. Solar cells of the two-dimensional perovskite structure prepared from the thiazole amine salt material have excellent electrical properties such as reducing exciton binding energy, enhancing charge transfer and accelerating charge transport, and long-term stabile perovskite solar cells can be realized.

Description

technical field [0001] The invention belongs to the technical field of solar cell preparation, and in particular relates to a thiazolamine salt material for preparing a two-dimensional perovskite structure and a preparation method thereof. Background technique [0002] In the field of photovoltaics, organo-metal halides with a perovskite structure, as a light-absorbing material, have attracted great attention in the photovoltaic industry due to their unique properties. Since 1978, Weber introduced methylamine ions into the crystal structure for the first time, forming With the discovery of organic-inorganic hybrid perovskite materials with a three-dimensional structure, the conversion efficiency of perovskite solar cells has been continuously improved, exceeding 20% ​​in recent years. However, due to its own characteristics, three-dimensional perovskite materials are unstable to humidity, light, heat and other environments, which affects the service life of solar cells. The...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C07D277/22H01L51/42H01L51/46
CPCC07D277/22H10K85/656H10K30/10Y02E10/549
Inventor杨冠军高黎黎王瑶
OwnerXI AN JIAOTONG UNIV