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

Donor materials for polymer solar cells and polymerized monomers for donor materials

A technology for solar cells and polymerized monomers, applied to monomers with fused ring lactam structure and their preparation, and donor materials for polymer solar cells, can solve the problem of weak π-π interaction between chains, carrier mobility and low energy conversion efficiency, poor polymer stacking order, etc.

Inactive Publication Date: 2016-06-08
THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing fused ring acceptor units still have insufficient conjugation length, large torsion of the polymer main chain, weak inter-chain π-π interaction, and poor order of polymer stacking, resulting in poor polymer carrier mobility and energy conversion efficiency. low level problem

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
  • Donor materials for polymer solar cells and polymerized monomers for donor materials
  • Donor materials for polymer solar cells and polymerized monomers for donor materials
  • Donor materials for polymer solar cells and polymerized monomers for donor materials

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example 1

[0102] Synthesis Example 1: Compound TPTI is synthesized through the following reaction scheme:

[0103]

[0104] (1) Synthesis of intermediate a (2,5-dibromo-1,4-terephthaloyl chloride)

[0105] Add 2.33g of 2,5-dibromo-1,4-terephthalic acid (7.2mmol), 50mL of dichloromethane, 4mL of oxalyl chloride (45.6mmol) and 3 drops of N,N-dimethylform into a 100mL single-necked bottle Amide was stirred overnight at room temperature with the exclusion of moisture; dichloromethane and excess oxalyl chloride were spinned off, and the obtained white solid was directly used in the next reaction.

[0106] (2) intermediate b(2,5-dibromo-N 1 ,N 4 -Bis(2-hexyldecyl)-N 1 ,N 4 -Synthesis of two (thiophene-3)-1,4-terephthalamide

[0107] Intermediate a was dissolved in 20mL of dichloromethane, and 4.7g (14.5mmol) of N-(2-hexyldecyl)-3-aminothiophene was added dropwise under an ice-water bath. et al, Chem. Commun. 2012, 48, 3939-3941; 2. US Pat. 20100297405) and 2 mL of triethylamine in di...

Synthetic example 2

[0120] Synthesis Example 2: Compound c2 was synthesized by the following reaction scheme:

[0121]

[0122] (1) Synthesis of intermediate a2 (2,5-dibromo-3,4-thiophene dicarboxylic acid chloride)

[0123] Add 2.38g of 2,5-dibromo-3,4-thiophenedicarboxylic acid (7.2mmol), 50mL of dichloromethane, 4mL of oxalyl chloride (45.6mmol) and 3 drops of N,N-dimethylformamide into a 100mL single-necked bottle , and stir overnight at room temperature with the exclusion of moisture; spin off dichloromethane and excess oxalyl chloride, and the white solid obtained is directly used in the next reaction.

[0124] (2) intermediate b2 (2,5-dibromo-N 3 ,N 4 -Bis(2-hexyldecyl)-N 3 ,N 4 -Synthesis of bis(thiophene-3)-thiophene-3,4-dicarboxamide

[0125] Intermediate a2 was dissolved in 20 mL of dichloromethane, and a dichloromethane solution containing 4.7 g (14.5 mmol) N-(2-hexyldecyl)-3-aminothiophene and 2 mL of triethylamine (20 mL ). After stirring and reacting overnight at room tem...

Embodiment 3

[0129] The compound c2 obtained in Example 2 is used as a raw material for bromination to obtain compound d2, and the reaction scheme is as follows:

[0130]

[0131] Synthesis of product d2

[0132] Add c2 (288mg, 0.37mmol), 15mL chloroform and 10mL N,N-dimethylformamide to a 100mL two-necked flask, add 136mg N-bromosuccinimide under argon protection; stir at room temperature for 24 hours and pour into 150mL methanol , filtered with suction, and the crude product was purified by column chromatography using petroleum ether / dichloromethane (2:1) as the eluent to obtain 316 mg of a yellow solid (yield 91%).

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
thermal decomposition temperatureaaaaaaaaaa
thermal decomposition temperatureaaaaaaaaaa
energy conversion efficiencyaaaaaaaaaa
Login to View More

Abstract

The invention relates to a polymeric monomer used for a polymer solar cell donor material, the polymerized monomer is a condensed ring compound with two lactam six-membered rings, and the lactam is connected through an aromatic ring. The polymerized monomer used for the polymer solar cell donor material provided by the present invention is a fused ring lactam compound, which increases the effective conjugation length; the main chain of the polymer solar cell donor material obtained by polymerization has less torsion, The inter-chain π-π interaction is strong, and the molecular packing order is high, which significantly improves the carrier mobility and energy conversion efficiency of the polymer; the power conversion efficiency (PCE) of the obtained polymer solar cell is ≥ 5%.

Description

technical field [0001] The present invention relates to the field of preparation of solar cells, in particular to donor materials for polymer solar cells and polymerized monomers of the donor materials, and further to a monomer with a fused ring lactam structure and a preparation method thereof, and the Donor materials for polymer solar cells obtained by polymerization of monomers. Background technique [0002] With the rapid development of global industry and economy, human demand for energy is increasing rapidly. Fossil energy is the main energy consumed by humans at present, but with the continuous exploitation, the depletion of fossil energy is inevitable. The environmental pollution caused by the extensive use of fossil energy is becoming more and more serious. In the winter of 2012, severe smog occurred in 33 cities in China, which was related to the high sulfur content of automobile oil. Energy is closely related to national development and security. Solar cells d...

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 Patents(China)
IPC IPC(8): C08G61/12C07D495/22C07D491/22H01L51/42
CPCY02E10/549
Inventor 曹佳民肖作丁黎明左啓群
Owner THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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