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Amphipathic conjugated polymer and production method and application thereof

A conjugated polymer and amphiphilic technology, which is applied in the field of amphiphilic conjugated polymers and their preparation, can solve the problems of difficult design, complex structure, and high cost of structural skeleton units, and achieves improved microscopic phase separation and good phase separation. Separation scale, effect of high short-circuit current

Inactive Publication Date: 2019-09-13
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complex structure of polymer materials, there are difficulties in design, and the cost of developing new structural skeleton units is relatively high

Method used

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  • Amphipathic conjugated polymer and production method and application thereof
  • Amphipathic conjugated polymer and production method and application thereof
  • Amphipathic conjugated polymer and production method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040]

[0041] target compound T 1

[0042] 【Reaction route】

[0043]

[0044] Dimethyltin-4,8-bis((5-hexyloctyl)thiophene)benzodithiophene (0.08mmol, 80mg), 2,6-dibromo-2-octanedecanenaphthalimide (0.056mmol, 96mg), join together in the 25mL Kleiner reaction tube, in the reaction tube, keep nitrogen atmosphere, add catalyst Pd 2 (dba) 3 (0.004mmol, 3.6mg), Ligand P(o-tol) 3(0.0096, 10 mg) and then maintain the nitrogen atmosphere again. Prepare 2,6-dibromo-tetrapolyethylene glycol naphthalimide with anhydrous toluene solvent to prepare a 10mg / mL solution, and after passing nitrogen gas for 15min, add 2mL of the solution to the reaction tube, and then add 3mL of anhydrous Purify toluene, control the temperature at 110°C, stir and heat the reaction mixture for 32h. Added 2-bromothiophene (0.084 mmol, 20mg), heated for 6h, added 2-butyltinthiophene (0.168mmol, 60mg), then kept heating for 6h, and finally cooled to room temperature. The reactant was settled in a met...

Embodiment 2

[0048]

[0049] target compound T 2

[0050] 【Reaction route】

[0051]

[0052]

[0053] Dimethyltin-4,8-bis((5-hexyloctyl)thiophene)benzodithiophene (0.08mmol, 80mg), 2,6-dibromo-2-octanedecanenaphthalimide (0.072mmol, 90mg), join together in the 25mL Kleiner reaction tube, in the reaction tube, keep nitrogen atmosphere, add catalyst Pd 2 (dba) 3 (0.0024mmol, 2mg), Ligand P(o-tol) 3 (0.008mmol, 8mg) and then maintain the nitrogen atmosphere again. Prepare 2,6-dibromo-tripolyethylene glycol naphthalimide with anhydrous toluene solvent to form an 8mg / mL solution, and after passing nitrogen gas for 15min, add 1mL of the solution to the reaction tube, and then add 4mL of Water was used to purify toluene, the temperature was controlled at 110°C, and the reaction mixture was stirred and heated for 40 hours. Add 2-bromothiophene (0.09mmol, 25mg), after heating for 6h, add 2-butyltinthiophene (0.120mmol, 50mg), keep heating for 6h, and finally cool to room temperature...

Embodiment 3

[0055] Preparation of ternary organic solar cells with inverted structure, binary device structure ITO / ZnO / PBDB-T: target compound T1 / MoO in Example 1 3 / Ag, the process is as follows:

[0056] (1) Use an ITO electrode with a square resistance of about 15Ω for cleaning, and then use detergent, deionized water, acetone, and isopropanol to clean it ultrasonically for 15 minutes, then blow it dry with nitrogen, and immediately clean it with a UV cleaner for 10 minutes after drying .

[0057] (2) Use absolute ethanol as the solvent and zinc acetate as the solute to prepare a solution of 80 mg / mL, then add 28 μL of ethanolamine to each milliliter of the solution, stir for 24 hours to form a ZnO precursor solution, spin-coat at 4500 rpm for 30 seconds, 200 ℃ annealing for 30min to form a zinc oxide interface layer.

[0058] (3) Transfer the annealed ITO substrate to the glove box, spin-coat the active layer on the ZnO film, and dissolve the active layer material with a binary dono...

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Abstract

The invention discloses an amphipathic conjugated polymer and a production method and application thereof. The polymer is a naphthalene diimide polymer derivative which is obtained through copolymerization of naphthalene diimide (NDI), dibenthiophene and amphipathic group-substituted dibromonaphthalene diimide. By introducing an amphipathic group, without having large effects on spectral absorption and energy level alignment, the polymer is applied as an organic solar cell material active layer material or an adding component, a donor-acceptor ratio of an active layer does not need to be changed, the micro-phase separation state can be effectively adjusted, the exciton dissociation efficiency can be improved, and molecular orientation can be enhanced, so that the photoelectric conversion efficiency of an organic photovoltaic device is significantly improved.

Description

technical field [0001] The invention belongs to the technical field of photoelectric materials, and in particular relates to an amphiphilic conjugated polymer and its preparation method and application. Background technique [0002] As an important aspect of solar energy utilization, solar cells have been widely concerned. Polymer-based organic solar cells have become the most promising next-generation energy technology due to their significant advantages such as low cost, light weight, flexibility, and large-area preparation. At present, based on the optimization of materials and device structures, the conversion efficiency of organic polymer solar cells has exceeded 10%, reaching the level of commercial application. Due to the complex structure of polymer materials, it is difficult to design, and the cost of developing new structural skeleton units is relatively high. Compared with the development of new structural skeleton units, by modifying the side chains, the overal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/12H01L51/46
CPCC08G61/126C08G61/12C08G2261/122C08G2261/414C08G2261/145C08G2261/1412C08G2261/3243C08G2261/3241C08G2261/64C08G2261/91H10K85/113Y02E10/549
Inventor 赖文勇薛轶博李祥春黄维
Owner NANJING UNIV OF POSTS & TELECOMM
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