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

Preparation method of 4-pyridine methylamine bromide optimized tin-lead mixed perovskite solar cell

A technology of solar cells and picolylamine, applied in circuits, photovoltaic power generation, electrical components, etc., to achieve the effect of improving quality and crystallinity, improving photoelectric performance, and improving stability

Active Publication Date: 2021-09-24
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Blow dry with air after cleaning

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 of 4-pyridine methylamine bromide optimized tin-lead mixed perovskite solar cell
  • Preparation method of 4-pyridine methylamine bromide optimized tin-lead mixed perovskite solar cell
  • Preparation method of 4-pyridine methylamine bromide optimized tin-lead mixed perovskite solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0034] (1) Cut the ITO conductive glass and perform etching and cleaning: first cut the ITO conductive glass to 2.1x1.5cm 2 Then the cut ITO substrate was etched with hydrochloric acid and zinc powder, and the etched ITO substrate was soaked in an alkali tank for 10 minutes. After soaking, ultrasonic cleaning was performed for 20 minutes with detergent, deionized water, and ethanol twice. Finally, use air to dry after washing.

[0035] (2) Preparation of the hole transport layer: first, put the ITO substrate into an ultraviolet ozone cleaning machine for ultraviolet ozone treatment for 10 minutes to enhance the wettability of the ITO substrate. Then, spin-coat PEDOT:PSS on the ITO substrate as a hole transport layer: fix the ITO substrate on the spin-coater, set the parameters of the spin-coater to 4000 rpm for 30 seconds, and then use a pipette gun to take 50 microliters of PEDOT :PSS was dropped on the ITO substrate and started to spin-coat, and finally heated at 170°C for...

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
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of a 4-pyridine methylamine bromide optimized tin-lead mixed perovskite solar cell. The preparation method comprises the following steps: cutting ITO conductive glass and cleaning; preparing a hole transport layer; preparing a perovskite precursor solution added with PyABr; preparing a perovskite thin film; preparing an electron transport layer; and preparing a metal electrode. In a perovskite precursor solution, a pyridine group can generate a strong binding effect with metal ions of lead and tin, so that the crystallization kinetics is changed, the problem that the film forming and crystallization speed is too high in the preparation process of the tin-lead mixed perovskite thin film is solved, and oxygen is prevented from reacting with Sn2+. The iodide ions can improve the crystal quality of the perovskite and supplement the iodine vacancy defect, so that the defect state density in the perovskite is further reduced, and the recombination of carriers is inhibited. Under the combined action of the two ions, the defects in the tin-lead perovskite are effectively passivated, the photoelectric property of the tin-lead mixed perovskite is obviously improved, and the stability is also effectively improved.

Description

technical field [0001] The invention relates to the field of low-lead perovskite solar cells, in particular to a method for optimizing the performance of perovskite devices by using 4-pyridylmethylamine bromide doping in flat trans-tin-lead mixed perovskites. Background technique [0002] The conversion efficiency of single-junction pure lead-based perovskite solar cells has been increased to 25.5%, but its wide band gap (1.5eV-1.6eV) of the light absorbing layer reduces the light absorption range and limits the photoelectric conversion efficiency. further improvement. In addition, although lead-based perovskite has the highest efficiency in perovskite solar cells at present, lead, as a highly toxic metal ion, is very harmful to the environment, so the further commercial application and industrialization of lead-based perovskite Production is limited. by Sn 2+ Partial replacement of Pb 2+ The tin-lead hybrid perovskite solar cells composed of Sn 2+ It has an ionic radiu...

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): H01L51/48H01L51/46H01L51/42
CPCH10K71/12H10K85/30H10K30/00Y02E10/549Y02P70/50
Inventor 古丽米娜白璐云杨一凡张育靖陈钦
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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