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

Carbon-based full-printing perovskite solar cell based on ionic liquid additive and preparation method ofcarbon-based full-printing perovskite solar cell

A technology for solar cells and ionic liquids, applied in semiconductor/solid-state device manufacturing, circuits, photovoltaic power generation, etc., can solve problems such as poor stability and poor optoelectronic performance, achieve low cost, solve poor optoelectronic performance, improve The effect of transmission performance

Pending Publication Date: 2021-09-07
GUILIN UNIV OF ELECTRONIC TECH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a carbon-based fully printed perovskite solar cell based on ionic liquid additives and its preparation method, by adding an optimally designed ionic liquid as an additive to the perovskite material, and at the same time precisely control the addition of the ionic liquid The perovskite precursor solution was measured, and was drip-coated on the surface of the anode layer by a one-step drop coating method, and fully penetrated into the three-layer mesoporous structure composed of the electron transport layer, the insulating spacer layer and the anode layer, and then the perovskite The three-layer mesoporous device of the precursor solution was annealed at 50-120°C for 10min-4h to prepare a carbon-based fully printed perovskite solar cell to improve the performance of the carbon-based fully printed perovskite solar cell and solve the problem of existing calcium Technical Problems of Poor Photoelectric Performance and Poor Stability of Titanium Ore Solar Cells

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
  • Carbon-based full-printing perovskite solar cell based on ionic liquid additive and preparation method ofcarbon-based full-printing perovskite solar cell
  • Carbon-based full-printing perovskite solar cell based on ionic liquid additive and preparation method ofcarbon-based full-printing perovskite solar cell
  • Carbon-based full-printing perovskite solar cell based on ionic liquid additive and preparation method ofcarbon-based full-printing perovskite solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] In this embodiment, the ionic liquid is 1-butyl-2,3-dimethylimidazolium tetrafluoroborate, and the solvent of the perovskite precursor is γ-butyrolactone. The specific implementation steps of preparation are as follows:

[0031] 1. Weigh 0.3842g PbI 2 , 0.128g CH 3 NH 3 1, 0.0069g 5-AVAI, the addition of 1-butyl-2,3-dimethylimidazolium tetrafluoroborate is precisely regulated and controlled to be 1.21mg, and above-mentioned material is completely dissolved in the gamma-butyrolactone of 1mL to obtain A perovskite precursor solution A with ionic liquid added;

[0032] 2. Prepare a hole blocking layer, an electron transport layer, an insulating spacer layer and an anode layer on the FTO glass substrate in sequence. The hole blocking layer is prepared by spray pyrolysis, and the hole blocking layer is dense TiO 2 , with a thickness of 50nm; the three mesoporous layers such as the electron transport layer, the insulating spacer layer and the anode layer are all printed ...

Embodiment 2

[0040] In this embodiment, the ionic liquid is 1-butyl-3-methylimidazolium iodide, and the perovskite precursor solvent is a DMF / DMSO mixed solvent. The specific implementation steps of preparation are as follows:

[0041] 1. Weigh 0.461g PbI 2 , 0.159g CH 3 NH 3 1, the addition of 1-butyl-3-methylimidazolium iodonium salt of precise regulation and control is 2.17mg, and above-mentioned material is dissolved in 1mL DMF / DMSO mixed solvent (by volume meter ratio 4:1) to obtain adding ionic liquid The perovskite precursor solution B;

[0042] 2. Prepare a hole blocking layer, an electron transport layer, an insulating spacer layer and an anode layer on the FTO glass substrate in sequence. The hole blocking layer is preferably prepared by spray pyrolysis, and the hole blocking layer is dense TiO 2 , with a thickness of 50nm; the three mesoporous layers such as the electron transport layer, the insulating spacer layer and the anode layer are all printed by a screen printing pr...

Embodiment 3

[0054] Referring to Example 2, the difference is that the added ionic liquid is methylamine acetate, and its added amount is precisely controlled to be 13.67 mg.

[0055] The J-V test was carried out on the prepared device, and the anti-sweep short-circuit current of the device was 19.44mA / cm 2 , the open circuit voltage is 0.93V, the fill factor is 72.55%, the photoelectric conversion efficiency is 13.12%; the positive scan short circuit current is 19.77mA / cm 2 , the open circuit voltage is 0.95V, the fill factor is 69.53%, and the photoelectric conversion efficiency is 13.06%. Positive and reverse scan hysteresis coefficient: 0.46%.

[0056] Comparing Example 3 with Comparative Example 2, it can be seen that the short-circuit current density, open-circuit voltage, fill factor and photoelectric conversion efficiency of the carbon-based all-printed perovskite solar cell prepared by adding the ionic liquid of this embodiment are greatly improved, and the device's The hysteres...

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 discloses a carbon-based full-printing perovskite solar cell based on an ionic liquid additive and a preparation method of the carbon-based full-printing perovskite solar cell based on the ionic liquid additive. The preparation method comprises the steps that optimally designed ionic liquid is added into a perovskite material as an additive, the addition amount of the ionic liquid is precisely regulated and controlled to obtain a novel perovskite precursor solution; the perovskite precursor solution is dispensed on the surface of an anode layer through a one-step dispensing method and fully permeates into a three-layer mesoporous structure formed by an electron transport layer, an insulating spacer layer and the anode layer, then a three-layer mesoporous device permeated with the perovskite precursor solution is annealed for 10 min to 4 h at the temperature of 50 DEG C to 120 DEG C, and the carbon-based full-printing perovskite solar cell is prepared. According to the method, the performance of the carbon-based full-printing perovskite solar cell can be remarkably improved, and the technical problems that an existing perovskite solar cell is poor in photoelectric performance and stability are solved.

Description

Technical field: [0001] The invention relates to the technical fields of photovoltaic energy and new solar cells, in particular to a carbon-based fully printed perovskite solar cell based on an ionic liquid additive and a preparation method thereof. Background technique: [0002] Perovskite solar cells are the third-generation solar cells with perovskite-type semiconductor materials as the light-absorbing layer. Due to their excellent optical properties, simple solution preparation process, and low cost of raw materials, they have quickly become a research hotspot in the field of photovoltaic energy. Since the first application of perovskite materials in the photovoltaic field in 2009, the photoelectric conversion efficiency of perovskite solar cells has broken through from the initial 3.8% to 25.5%, and there is still room for further improvement. However, the crystallization and growth process of perovskite materials are easily affected by temperature, humidity, solvents, ...

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): H01L51/48H01L51/42H01L51/46
CPCH10K71/00H10K71/12H10K30/30Y02E10/549
Inventor 张坚王栋杰佘斌
Owner GUILIN UNIV OF ELECTRONIC TECH
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