Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method and application of perovskite solar cell electron transport layer based on low-temperature titanium dioxide mesoporous structure

An electron transport layer and solar cell technology, which is applied in the field of solar cells, can solve the problems of limited application and high energy consumption, and achieve the effects of collection and transmission, low energy consumption, and good repeatability

Inactive Publication Date: 2019-06-07
北京宏泰创新科技有限公司
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, TiO 2 dense layer and TiO 2 The two most commonly used preparation methods for mesoporous layers are spray oxidation method and spin coating method, but the TiO prepared by these two methods 2 dense layer and TiO 2 The mesoporous layer requires a high-temperature annealing process of 450°C and above, which consumes a lot of energy and limits the application of this process in flexible devices.

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 method and application of perovskite solar cell electron transport layer based on low-temperature titanium dioxide mesoporous structure
  • Preparation method and application of perovskite solar cell electron transport layer based on low-temperature titanium dioxide mesoporous structure
  • Preparation method and application of perovskite solar cell electron transport layer based on low-temperature titanium dioxide mesoporous structure

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] The present invention provides a method for preparing an electron transport layer of a perovskite solar cell based on a low-temperature titanium dioxide mesoporous structure. The specific steps are as follows:

[0028] 1) Preparation of TiO on conductive glass substrate 2 dense layer

[0029] Preparation of precursor TiCl 4 The alcohol solution was spin-coated on a homogenizer, and then placed on a heating table for annealing.

[0030] 2) on TiO 2 Preparation of TiO on the surface of dense layer 2 Mesoporous layer

[0031] Preparation of brookite phase TiO 2 The alcohol dispersion of the slurry is spin-coated on a homogenizer, and then placed on a heating table for annealing.

[0032] TiCl 4 Alcoholic solution and brookite phase TiO 2 In the alcohol dispersion of the slurry, the alcohol solvent can be selected from n-butanol, ethanol, and isopropanol.

[0033] Preparation of TiO on Conductive Glass Substrates 2 When dense layer, the present invention selects T...

Embodiment 1

[0044] Such as figure 1 The perovskite solar cell structure shown includes a transparent conductive layer, an electron transport layer, a perovskite absorber layer, a hole transport layer and a back electrode layer. The specific preparation method is as follows:

[0045] 1) Prepare the FTO conductive glass layer by chemical vapor deposition on the glass substrate;

[0046] 2) Prepare an electron transport layer on the FTO conductive glass substrate, wherein the electron transport layer includes TiO 2 dense layer and TiO 2 Mesoporous layer:

[0047] ① Preparation of TiO on FTO conductive glass substrate 2 dense layer

[0048] 17% TiCl 4 The original solution was dissolved in n-butanol and configured as TiCl with a concentration of 0.18mol / L 4 - Isopropanol solution. The cleaned FTO conductive glass is placed on the homogenizer, and the TiCl 4 -N-butanol solution is uniformly spin-coated on the surface of FTO glass, the spin-coating time is 30s, and then the 2 The dense...

Embodiment 2

[0055] Such as figure 1 The perovskite solar cell structure shown includes a transparent conductive layer, an electron transport layer, a perovskite absorber layer, a hole transport layer and a back electrode layer in sequence. The specific preparation method is as follows:

[0056] Except step 2), other steps are identical with embodiment 1;

[0057] 2) Prepare an electron transport layer on the FTO conductive glass substrate, wherein the electron transport layer includes TiO 2 dense layer and TiO 2 Mesoporous layer:

[0058] ① Preparation of TiO on FTO conductive glass substrate 2 dense layer

[0059] 17% TiCl 4 The original solution was dissolved in n-butanol and configured as TiCl with a concentration of 0.2mol / L 4 - Solution in n-butanol. The cleaned FTO conductive glass is placed on the homogenizer, and the TiCl 4 -N-butanol solution is uniformly spin-coated on the surface of FTO glass, the spin-coating time is 30s, and then the 2 The dense layer of FTO glass is...

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

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
The size of granuleaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides a preparation method of a perovskite solar cell electron transport layer based on a low-temperature titanium dioxide mesoporous structure. The electron transport layer comprisesa TiO2 compact layer and a TiO2 mesoporous layer, and the preparation method comprises the following steps: firstly, preparing the TiO2 compact layer on a conductive glass substrate: preparing alcoholic solution of a precursor TiCl4, carrying out spin coating, and performing annealing at the temperature of 150 DEG C; secondly, preparing the TiO2 mesoporous layer on the TiO2 compact layer: preparing alcohol dispersion liquid of brookite phase TiO2 slurry, carrying out the spin-coating, and carrying out the annealing at the temperature of 150 DEG C. The method overcomes the application limitation of high-temperature annealing in the preparation of the TiO2-based electron transport layer in the prior art, achieves the preparation of the TiO2-based electron transport layer under a low-temperature condition, and achieves the preparation by adopting a spin coating method, and the process steps are simple and easy to implement.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a preparation method and application of an electron transport layer of a perovskite solar cell based on a low-temperature titanium dioxide mesoporous structure. Background technique [0002] In recent years, perovskite solar cells have become a research hotspot in the field of photovoltaic cells due to their excellent performance, low cost, and huge commercial value. In just a few years, the photoelectric efficiency of perovskite solar cells has rapidly increased from 3.8% to 23.7%, and the development trend is rapid. According to the structure of the selected electron transport layer, perovskite solar cells can be divided into planar and mesoporous cells, and mesoporous cells have higher conversion efficiency and smaller current hysteresis. The structure of perovskite solar cells with mesoporous structure generally includes a transparent conductive layer, a hole blocking la...

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
IPC IPC(8): H01L51/48H01L51/46H01L51/42B82Y40/00
CPCY02E10/549
Inventor 张洪旭王永磊唐泽国
Owner 北京宏泰创新科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com