Novel fluorine organic solar battery acceptor material as well as preparation method and application thereof

A technology for solar cells and acceptor materials, applied in the field of organic solar cell materials, can solve problems such as unfavorable commercial application, difficult preparation process, complex substructure, etc., achieve good visible light absorption range and absorption intensity, and synthetic raw materials are cheap and easy to obtain. , the effect of simple molecular structure

Inactive Publication Date: 2018-06-08
WUHAN UNIV OF TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

However, due to the limitations of fullerene acceptors such as weak light absorption in the visible region, small molecular energy level modulation range, and high synthesis and purification costs, people are gradually turning their attention to non-fullerene-based polymer solar cells.
Since 2015, Zhan Xiaowei's research group of the Key Laboratory of Organic Solid State Institute of Chemistry, Chinese Acade

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  • Novel fluorine organic solar battery acceptor material as well as preparation method and application thereof
  • Novel fluorine organic solar battery acceptor material as well as preparation method and application thereof
  • Novel fluorine organic solar battery acceptor material as well as preparation method and application thereof

Examples

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Example Embodiment

[0046] Example 1

[0047] A fluorene-based organic solar cell acceptor material S-1, its chemical structural formula is:

[0048]

[0049] The above-mentioned fluorene-based organic solar cell acceptor material S-1, the preparation method is as follows (the preparation route is as figure 1 Shown):

[0050] (1) Synthesis of compound 1: Take a 250ml double-necked round-bottomed flask, treat it with anhydrous and oxygen-free conditions, add 2,7-dibromofluorene (15mmol), tetrabutylammonium iodide (30wt%, 4.5mmol), and pump Fill with nitrogen 3 times, inject 50ml DMSO and 30ml 50wt% NaOH solution under the protection of nitrogen, heat to 100℃, react overnight, TLC monitoring; post-processing: stop the reaction, cool to room temperature, transfer to 500ml separatory funnel, 100ml 10% (Volume concentration) Wash with dilute hydrochloric acid (add slowly, carefully exothermic), extract with petroleum ether, wash the organic phase with saturated brine 50ml*3, dry and concentrate the organic ...

Example Embodiment

[0055] Example 2

[0056] A fluorene-based organic solar cell acceptor material S-2, its chemical structural formula is:

[0057]

[0058] The above-mentioned fluorene-based organic solar cell acceptor material S-2, the preparation method is as follows (the preparation route is as figure 2 Shown):

[0059] (1) The synthesis of compound 1 and compound 2 is the same as that of Example 1;

[0060] (2) Synthesis of compound 5: Take a 250ml double-necked flask, treat it with anhydrous and anhydrous, add compound 1 (16mmol) and 100ml of anhydrous THF, stir for 15min at -78°C, add n-BuLi(2.5eq, 16ml, 40mmol), stir the reaction; after 1.5h of reaction, add isopropanol naborate (4eq, 64mmol), turn off the refrigeration, overnight reaction, TLC monitoring; post-treatment: stop the reaction after 9h, quench by adding water, extract with dichloromethane, Drying and concentration, silica gel column chromatography, petroleum ether / ethyl acetate = 20 / 1 as eluent, to obtain pure white solid product...

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Abstract

The invention belongs to the technical field of organic solar battery materials and in particular relates to a novel fluorine organic solar battery acceptor material as well as a preparation method and application thereof. Aiming at the defects that a conventional non-fullerene micromolecule acceptor material is complex in molecule structure, relatively large in molecular weight, hard in preparation process, expensive in synthesis raw material, not beneficial to commercial application, and the like, the invention provides the novel fluorine organic solar battery acceptor material, a fluorine organic solar battery acceptor material S-1 and a fluorine organic solar battery acceptor material S-2 are of simple linear structures, are simple in molecular structure, small in molecular weight, small and simple in preparation step, cheap and easy in synthesis raw material obtaining, wide in visible light absorption range and high in absorption strength; when the fluorine organic solar battery acceptor materials are applied to an organic solar battery photovoltaic device, the manufacturing cost of the device is greatly reduced on the basis that a wide absorption range and high absorption strength of the device are ensured, and soon commercial application of an organic solar battery can be facilitated.

Description

technical field [0001] The invention belongs to the technical field of organic solar cell materials, and in particular relates to a novel fluorene organic solar cell acceptor material and its preparation method and application. Background technique [0002] Organic Photovoltaics (OPV for short) is a new type of photovoltaic device developed in the 1980s based on organic semiconductor light-absorbing materials to achieve photoelectric conversion effects. Studies have shown that compared with traditional inorganic silicon solar cells, OPV has the advantages of adjustable molecular structure, low price, light weight and portability, and can use roll-to-roll and spray printing technology to realize fast and large-area processing of flexible devices, which has attracted widespread attention. And gradually move towards industrialization. [0003] The active layer of polymer solar cells is usually composed of polymer / organic small molecule-based electron donor and electron accepto...

Claims

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Application Information

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IPC IPC(8): C07D333/24H01L51/46
CPCC07D333/24H10K85/626H10K85/655Y02E10/549Y02P70/50
Inventor 肖生强陈浩琪杨明焱詹春尤为
Owner WUHAN UNIV OF TECH
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