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

Preparation method of graphene-based organic solar cell interface material

A technology for solar cells and interface materials, which is applied in the field of preparation of interface materials for graphene-based organic solar cells, can solve the problems of uniform thin films, cannot be coated and formed, and affects photoelectric conversion efficiency, and achieves the effect of avoiding agglomeration.

Inactive Publication Date: 2018-11-27
FOSHAN TENGLI NEW ENERGY TECH CO LTD
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is: when graphene oxide is used as a raw material for traditional solar cell interface materials, reduced graphene oxide has poor dispersibility in solvents and cannot be coated with a solution to form a relatively uniform film, thereby affecting its performance. Disadvantages of photoelectric conversion efficiency, providing a preparation method of graphene-based organic solar cell interface material

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 graphene-based organic solar cell interface material

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0024] According to the mass ratio of 1:10, graphene oxide and isocyanate were mixed and poured into No. 1 three-necked flask. Under the condition of ultrasonic frequency of 60 kHz, after ultrasonic dispersion for 60 minutes, the No. 1 three-necked flask was moved into a digital speed measuring constant temperature magnetic stirrer. At a temperature of 70°C and a rotation speed of 600r / min, stir and react at a constant temperature for 3 hours, filter to obtain No. 1 filter cake, and then vacuum-dry the obtained No. 1 filter cake to obtain isocyanate-modified graphene oxide; the isocyanate-modified graphite oxide The dimethyl formamide solution of alkene and sodium azide is mixed according to the mass ratio of 1:8 and poured into No. 2 three-neck flask. Under the condition of ultrasonic frequency of 60kHz, after ultrasonic dispersion for 60min, move the No. 2 flask into the digital display speed measurement In a constant temperature magnetic stirrer, at a temperature of 75°C and...

example 2

[0026] Mix the dimethylformamide solution of graphene oxide and sodium azide at a mass ratio of 1:8 and pour it into a No. 2 three-necked flask. In a magnetic stirrer with digital speed measurement and constant temperature, at a temperature of 75°C and a rotational speed of 600r / min, stir and react at a constant temperature for 3 hours, then filter to obtain No. 2 filter cake, and use dimethylformamide After washing 5 times, vacuum-dry to obtain sodium azide-modified graphene oxide; mix sodium azide-modified graphene oxide and tetrahydrofuran at a mass ratio of 1:12 and pour it into a No. Under certain conditions, after ultrasonic dispersion for 50 min, the No. 3 three-neck flask was moved into a digital display speed measuring constant temperature magnetic stirrer, and lithium aluminum hydride, which was 0.5 times the mass of sodium azide-modified graphene oxide, was added to the No. 3 three-necked flask. At 85°C and a rotation speed of 800r / min, stir and react at a constant ...

example 3

[0028] According to the mass ratio of 1:10, graphene oxide and isocyanate were mixed and poured into No. 1 three-necked flask. Under the condition of ultrasonic frequency of 60 kHz, after ultrasonic dispersion for 60 minutes, the No. 1 three-necked flask was moved into a digital speed measuring constant temperature magnetic stirrer. At a temperature of 70°C and a rotation speed of 600r / min, stir and react at a constant temperature for 3 hours, then filter to obtain No. 1 filter cake, and then vacuum-dry the obtained No. 1 filter cake to obtain isocyanate-modified graphene oxide; Graphene and concentrated hydrochloric acid with a mass fraction of 35% were mixed according to a mass ratio of 1:5 and poured into a No. 4 three-neck flask with a reflux condenser, heated and refluxed for 5 hours, and then filtered to obtain a No. 4 filter cake, and deionized water Wash No. 4 filter cake 5 times, then vacuum-dry the No. 4 filter cake after washing to obtain hydrolyzed reduced graphene ...

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 preparation method of a graphene-based organic solar cell interface material and belongs to the technical field of new energy source materials. When the graphene-based organic solar cell interface material researched by the invention is prepared, the method comprises the following steps: modifying graphene oxide through isocyanate and sodium azide in sequence; then reducing the modified graphene oxide through lithium aluminum hydride; then mixing reduced graphene oxide and concentrated hydrochloric acid, and hydrolyzing; equally dividing hydrolyzed reduced graphene oxide into a part A ad a part B; dispersing the part A into water and regulating the pH (Potential of Hydrogen); concentrating to obtain a concentrated acidic dispersion solution; dispersing the part Binto a silver nitrate dispersion solution; adding dopamine, regulating the pH and concentrating to obtain an alkaline dispersion solution; then coating the surface of a glass plate with the acidic dispersion solution and the alkaline dispersion solution respectively; after drying and curing, uncovering a film, reducing and carrying out hot pressing to obtain the graphene-based organic solar cell interface material. The graphene-based organic solar cell interface material prepared by the invention has excellent photoelectric transforming efficiency.

Description

technical field [0001] The invention discloses a preparation method of a graphene-based organic solar cell interface material, belonging to the technical field of new energy materials. Background technique [0002] With the aggravation of the energy crisis and the increasingly serious environmental problems, solar energy has attracted widespread attention. [0003] Geim et al. prepared single-layer graphene by mechanical exfoliation and found that it has unique electrical properties. Graphene, a single-layer two-dimensional atomic crystal composed of sp 2 The monoatomic layer composed of hybridized carbon atoms can be regarded as the basic unit for constructing other carbon nanomaterials (zero-dimensional fullerene, one-dimensional carbon nanotubes, three-dimensional graphite). Graphene has a huge specific surface area (2630m 2 g -1 ), very high Young's modulus (1.06TPa), excellent electrical conductivity (~10 6 S cm -1 ) and thermal conductivity (5000W·m -1 K -1 ) a...

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): H01L51/48H01L51/46
CPCH10K85/20H10K30/00Y02E10/549
Inventor 刘菊花许永博朱东东
Owner FOSHAN TENGLI NEW ENERGY TECH CO LTD
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