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Naphthalene-based conjugated polymers and uses thereof

A technology of polymers and alkyls, which is applied in the fields of electric solid-state devices, semiconductor devices, photovoltaic power generation, etc., and can solve problems such as band gap narrowing

Active Publication Date: 2017-03-01
苏州速安行新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the HOMO of the conjugated polymer itself will be higher than the HOMO of its donor unit, and its LUMO will be lower than that of its acceptor unit, so that its band gap will be narrowed

Method used

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  • Naphthalene-based conjugated polymers and uses thereof
  • Naphthalene-based conjugated polymers and uses thereof
  • Naphthalene-based conjugated polymers and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 3B

[0063] Embodiment 3B. The polymer of Embodiment 3A, wherein D 1 and D 2 It is M-1.

[0064] Embodiment 3C. The polymer of Embodiment 3B, wherein D 1 and D 2 is 2,5-thienyl.

[0065] Embodiment 4A. The polymer of Formula 1a or 1b, wherein X is C(O), C(S), C(O)O, or C(S)O.

[0066] Embodiment 4B. The polymer of Embodiment 3A, wherein X is C(O) or C(S).

[0067] Embodiment 4C. The polymer of Embodiment 3B wherein X is C(O).

[0068] Embodiment 5A. The polymer of Formula 1a or 1b wherein Y is C 1 -C 30 Alkyl, C 2 -C 30 Alkenyl, C 3 -C 20 Cycloalkyl, C 3 -C 20 Cycloalkenyl, C 4 -C 30 Cycloalkylalkyl, C 4 -C 30 Cycloalkenylalkyl, C 2 -C 20 Heterocyclyl, C 3 -C 30 Heterocyclylalkyl, C 6 -C 20 Aryl, or C 5 -C 20 heteroaryl.

[0069] Embodiment 5B. The polymer of Embodiment 5A, wherein Y is C 6 -C 24 Alkyl, C 6 -C 24 Alkenyl, C 3 -C 16 Cycloalkyl, C 3 -C 16 Cycloalkenyl, C 4 -C 24 Cycloalkylalkyl, C 4 -C 24 Cycloalkenylalkyl, C 2 -C 14 Heterocycl...

Embodiment 1

[0172] Poly{(E)-6-(5-(4,8-bis(5-(2-hexyldecanoyl)thiophen-2-yl)-6-(thiophen-2-yl)naphthalen-2-yl) Thiophen-2-yl)-1,1’-bis(2-hexyldecyl)-[3,3’-bis(dihydroindolylidene)]-2,2’-dione}[PT4NIsoI] preparation

[0173] Step A: Preparation of 1,5-bis(tetrahydro-2H-pyran-2-yloxy)naphthalene (Product A)

[0174] 1,5-Dihydroxynaphthalene (6.40 g, 39.96 mmol), pyridinium p-toluenesulfonate (2.01 g, 7.99 mmol) and 20 mL of CH 2 Cl 2 Add to a 250 mL reaction flask placed in an ice bath and stir. 3,4-Dihydro-2H-pyran (14.58 mL, 159.83 mmol) was injected dropwise via syringe. After 20 minutes, the ice bath was removed, the reaction mixture was allowed to warm to room temperature and stirring was continued for 4 hours. The resulting reaction mixture was washed with saturated aqueous sodium bicarbonate and then extracted with dichloromethane. The resulting combined organic extracts were washed successively with distilled water and brine, and traces of water were removed using anhydro...

Embodiment 2

[0206] Poly{1,1'-(5,5'-(3-(5-(benzo[c][1,2,5]thiadiazol-4-yl)thiophen-2-yl)-7-( Thiophene-2- base)naphthalene-1,5-diyl)bis(thiophene-5,2-diyl))bis(2-hexyldec-1-one)}[PT4NBTD]

[0207] The 1,1'-(5,5'-(3,7-bis(thiophen-2-yl)naphthalene-1,5-diyl)bis(thiophene-5, 2-diyl))bis(2-hexyldec-1-one) (171 mg, 0.183 mmol), 4,7-dibromo-2,1,3-benzothiadiazole (63.0 mg, 0.183 mmol mol), potassium carbonate (44.4 mg, 0.321 mmol), palladium(II) acetate (1.9 mg, 0.009 mmol) were added into a 10 ml microwave reactor and sealed. The mixture was then evacuated / nitrogen filled three times. Degassed and dried dimethylacetamide (DMAc) (2 mL) was injected into the microwave reactor. The mixture was heated to 110 °C for 180 min under microwave irradiation. After the reaction was complete, the mixture was poured into methanol and the precipitate was collected by vacuum filtration. The polymer was extracted by Soxhlet extraction, using acetone and petroleum ether to wash away impurities, and then...

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Abstract

The present invention relates to naphthalene-based conjugated polymers and uses thereof, in particular to polymers of formula 1a and 1b, wherein G1, G2, A1, A2, D1, D2, X, Y, m, n and q are as in the description defined. Also disclosed are films and devices comprising polymers of formulas 1a and 1b, and the use of said polymers in organic photovoltaic cells (OPVs).

Description

technical field [0001] The present invention relates to conjugated polymers comprising 1,5- or 2,6-substituted naphthalene monomers, their preparation, and their use as electron donors in organic photovoltaic cells (OPVs). Background technique [0002] Photovoltaics (PVs) are a sustainable energy solution to help meet the growing energy demands of the future. Photovoltaic cells based on silicon materials are currently the main commercialized technology with the advantage of their high energy conversion efficiency; however, their disadvantages include high production costs and the need to dispose of large amounts of waste generated during the manufacturing process. Organic photovoltaics (OPVs) are an emerging technological solution that can address the aforementioned high production costs and waste disposal issues. The preparation process of OPVs, especially the solution processing process, has the advantages of rapidity, simplicity and low cost, and is suitable for the prod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G61/12C08L65/00H01L51/46
CPCY02E10/549
Inventor 韩续梅建国潘霄张仲凝
Owner 苏州速安行新能源科技有限公司