An application of a rapidly synthesized B-phase titanium dioxide in a perovskite solar cell

A technology of solar cells and titanium dioxide, applied in the field of solar cells, can solve problems such as limited research, and achieve the effects of avoiding agglomeration, good reproducibility, and high efficiency

Active Publication Date: 2019-01-15
FUZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, B-phase titanium dioxide has been used in the field of lithium-ion batteries by researchers in recent years, but the research is relatively limited.
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Method used

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  • An application of a rapidly synthesized B-phase titanium dioxide in a perovskite solar cell
  • An application of a rapidly synthesized B-phase titanium dioxide in a perovskite solar cell
  • An application of a rapidly synthesized B-phase titanium dioxide in a perovskite solar cell

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Embodiment 1

[0016] A kind of application of rapidly synthesized B-phase titanium dioxide in perovskite solar cells, comprising the following steps:

[0017] (1) Take 60 mL of deionized water and place it in a 100 mL beaker, add 7 g of glycolic acid solid and 4 g of urea in sequence, and stir for 15 min. After it is fully dissolved, measure 2.0 mL of tetrabutyl titanate solution with a pipette gun, add it dropwise into the beaker, and stir vigorously for 5 min. Subsequently, measure 0.4 mL of concentrated sulfuric acid liquid with a pipette gun, slowly add it to the above solution, and continue to stir vigorously for 15 min. The solution in the beaker was transferred to a 100 mL autoclave, and placed in an oven at 180 °C for 3 h at constant temperature to obtain a gray precipitate. The gray precipitate was centrifuged, washed three times with deionized water, and dried to obtain a B-phase titanium dioxide precursor.

[0018] (2) Mix the prepared B-phase titanium dioxide precursor with et...

Embodiment 2

[0021] A kind of application of rapidly synthesized B-phase titanium dioxide in perovskite solar cells, comprising the following steps:

[0022] (1) Take 50mL of deionized water and place it in a 100mL beaker, add 6g of glycolic acid solid and 3g of urea in sequence, and stir for 15 min. After it was fully dissolved, measure 1.5 mL tetrabutyl titanate solution with a pipette gun, add it dropwise into the beaker, and stir vigorously for 5 min. Subsequently, measure 0.3 mL of concentrated sulfuric acid liquid with a pipette gun, slowly add it to the above solution, and continue to stir vigorously for 15 min. The solution in the beaker was transferred to a 100 mL autoclave, and placed in an oven at 170 °C for 2 h at constant temperature to obtain a gray precipitate. The gray precipitate was centrifuged, washed three times with deionized water, and dried to obtain a B-phase titanium dioxide precursor.

[0023] (2) Mix the prepared B-phase titanium dioxide precursor with ethyl ce...

Embodiment 3

[0025] A kind of application of rapidly synthesized B-phase titanium dioxide in perovskite solar cells, comprising the following steps:

[0026] (1) Take 70 mL of deionized water and put it in a 100 mL beaker, add 8 g of glycolic acid solid and 5 g of urea in sequence, and stir for 15 min. After it was fully dissolved, measure 2.5 mL tetrabutyl titanate solution with a pipette gun, add it dropwise into the beaker, and stir vigorously for 5 min. Subsequently, measure 0.5 mL of concentrated sulfuric acid liquid with a pipette gun, slowly add it to the above solution, and continue to stir vigorously for 15 min. The solution in the beaker was transferred to a 100 mL autoclave, and placed in an oven at 200 °C for 4 h at constant temperature to obtain a gray precipitate. The gray precipitate was centrifuged, washed three times with deionized water, and dried to obtain a B-phase titanium dioxide precursor.

[0027](2) Mix the prepared B-phase titanium dioxide precursor with ethyl c...

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Abstract

The invention discloses an application of a rapidly synthesized B-phase titanium dioxide in a perovskite solar cell, wherein the rapidly synthesized B-phase titanium dioxide is applied to a perovskitesolar cell for the first time. The method relates to a rapid hydrothermal synthesis method, glycolic acid, urea is dissolved in deionized water, After adding tetrabutyl titanate and concentrated sulfuric acid, the precursor of B-phase titanium dioxide was obtained by reacting in a high temperature reactor for more than 2 hours. The precursor was coated on FTO conductive glass and calcined to prepare B-phase titanium dioxide electron transport layer. The layer was applied to the assembly of perovskite solar cells, and the high efficiency of 17.54% was obtained. The synthesis method is simple and reproducible, which provides a new idea for the preparation of high efficiency perovskite solar cells in the future.

Description

technical field [0001] The invention belongs to the field of solar cells, and in particular relates to the application of rapidly synthesized B-phase titanium dioxide in perovskite solar cells. Background technique [0002] Perovskite solar cells are a hot research direction of solar cells in recent years. Because of its low cost, simple preparation, easy film formation, superior performance, and good stability, it is favored by scientific researchers. The highest efficiency of the currently reported and certified perovskite solar cells is 23.3%, so the researchers believe that it is expected to be comparable to silicon-based solar cells in the future. At present, various semiconductor oxides, such as titanium dioxide, zinc oxide, tin dioxide, zinc stannate, etc., have been widely studied and reported as materials for perovskite solar electron transport layers, among which titanium dioxide is the best electron transport layer. Transmission material, and the current highest...

Claims

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Application Information

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IPC IPC(8): H01L51/42
CPCH10K30/10H10K30/00Y02E10/549
Inventor 魏明灯谢锋炎沈德立
Owner FUZHOU UNIVERSITY
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