Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation process of perovskite solar cell by polyester fiber brush coating method

A technology of solar cells and polyester fibers, which is applied in the field of solar cells, can solve the problems of complicated process and high cost, and achieve the effects of less time-consuming, material saving and material waste reduction

Inactive Publication Date: 2019-03-29
SUZHOU UNIV
View PDF11 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Technical problem to be solved: Conventional perovskite solar cells use the method of spin coating to process perovskite layer thin films. The process is complicated and the cost is high. The preparation process of perovskite solar cells by fiber brush coating method, specifically, the perovskite precursor solution is applied to the substrate by liquid chalk with polyester fiber as the tip, and the perovskite film is made by adjusting the application rate and annealing time. Flat crystallization, simplification and high photoelectric conversion efficiency

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation process of perovskite solar cell by polyester fiber brush coating method
  • Preparation process of perovskite solar cell by polyester fiber brush coating method
  • Preparation process of perovskite solar cell by polyester fiber brush coating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Provide an FTO glass substrate and perform standardized cleaning;

[0025] (2) Methylammonium iodide (MAI) and lead iodide (PbI 2 ) was dissolved in a mixed solution of dimethyl sulfoxide and γ-hydroxybutyrolactone with a volume ratio of 3:7 at a molar ratio of 1:1, and stirred for 2-8 hours to obtain 1.2mol / L perovskite DMSO- GBL solution;

[0026] (3) 4500 μL titanium tetrachloride (TiCl 4 ) into 200g of ice-water mixture, immerse the FTO glass substrate, put it in an oven at 70°C for 1 hour, take it out, rinse it slowly with deionized water, dry it, and put it in an oven to dry to obtain a uniform titanium dioxide (TiO 2 ) electron transport layer;

[0027] (4) Add the perovskite DMSO-GBL solution to the liquid chalk hollow rod made of polyester fiber, and apply it on TiO2 at a speed of 1cm / s. 2 Form a relatively uniform photosensitive layer on the film, and anneal at 100°C for 10 minutes;

[0028] (5) Process the hole transport layer Spiro-OMeTAD on the per...

Embodiment 2

[0032] (1) Provide an FTO glass substrate and perform standardized cleaning;

[0033] (2) Methylammonium iodide (MAI) and lead iodide (PbI 2 ) was dissolved in a mixed solution of dimethyl sulfoxide and γ-hydroxybutyrolactone with a volume ratio of 3:7 at a molar ratio of 1:1, and stirred for 2-8 hours to obtain 1.2mol / L perovskite DMSO- GBL solution;

[0034] (3) 4500 μL titanium tetrachloride (TiCl 4 ) into 200g of ice-water mixture, immerse the FTO glass substrate, put it in an oven at 70°C for 1 hour, take it out, rinse it slowly with deionized water, dry it, and put it in an oven to dry to obtain a uniform titanium dioxide (TiO 2 ) electron transport layer;

[0035] (4) Add the perovskite DMSO-GBL solution to the liquid chalk hollow rod made of polyester fiber, and apply it on TiO2 at a speed of 1cm / s. 2 Form a relatively uniform photosensitive layer on the film, and anneal at 100°C for 15 minutes;

[0036] (5) Process the hole transport layer Spiro-OMeTAD on the per...

Embodiment 3

[0040] (1) Provide an FTO glass substrate and perform standardized cleaning;

[0041] (2) Methylammonium iodide (MAI) and lead iodide (PbI 2 ) was dissolved in a mixed solution of dimethyl sulfoxide and γ-hydroxybutyrolactone with a volume ratio of 3:7 at a molar ratio of 1:1, and stirred for 2-8 hours to obtain 1.2mol / L perovskite DMSO- GBL solution;

[0042] (3) 4500 μL titanium tetrachloride (TiCl 4 ) into 200g of ice-water mixture, immerse the FTO glass substrate, put it in an oven at 70°C for 1 hour, take it out, rinse it slowly with deionized water, dry it, and put it in an oven to dry to obtain a uniform titanium dioxide (TiO 2 ) electron transport layer;

[0043] (4) Add the perovskite DMSO-GBL solution to the liquid chalk hollow rod made of polyester fiber, and apply it on TiO2 at a speed of 1cm / s. 2 Form a relatively uniform photosensitive layer on the film, and anneal at 100°C for 20 minutes;

[0044](5) Process the hole transport layer Spiro-OMeTAD on the pero...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the field of solar cells, and discloses a preparation process of a perovskite solar cell by a polyester fiber brush coating method. The method comprises the steps: adding perovskite precursor solution to liquid chalk taking a polyester fiber as a writing head, and processing the perovskite solar cell by using a smearing method. The process is simple, saves materials, doesnot need spin coating, is resistant to a solvent, facilitates the great reduction of the preparation cost of the perovskite solar cell, simplifies the preparation process, and saves materials. The process exerts no strict requirements on a substrate, and is more beneficial to prepare a large-area, flexible and bendable device. The process simplifies the preparation, maintains the photoelectric conversion efficiency of the device at a high level, is higher in repeatability and facilitates the industrial production.

Description

technical field [0001] The invention belongs to the field of solar cells, and relates to a novel method for forming a film of a perovskite solar cell, in particular to a preparation process for processing a perovskite solar cell by painting with a brush. Background technique [0002] In the face of the current energy crisis and environmental pollution, photovoltaic cells that can directly convert solar energy into electrical energy are of great significance for solving energy depletion and mitigating environmental degradation, and ensuring sustainable and healthy development of society and economy. In recent years, organic-inorganic hybrid perovskite solar cells have emerged, and their PCE has rapidly increased from 3.8% in 2009 to more than 20% at present. Perovskite materials are cheap, have a suitable bandgap width, and have both hole and electron transport capabilities. Therefore, the solar power generation technology represented by organic-inorganic composite perovskit...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/48
CPCH10K71/13H10K71/12H10K30/10Y02E10/549
Inventor 王照奎朱俊毅李萌
Owner SUZHOU UNIV