A kind of preparation method of n-type triazine naphthalimide cof conjugated polymer cathode interface layer

A technology of triazine naphthalene diimide and conjugated polymer, which is applied in the field of cathode interface layer of organic solar cells, can solve the problems such as the morphology of the active layer, the stability of the interface barrier device of electron mobility, etc. can not be solved at the same time, and achieves Excellent charge transport properties, balanced conductivity and solubility, and the effect of lowering the interface barrier

Active Publication Date: 2022-07-05
NANCHANG HANGKONG UNIVERSITY
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Problems solved by technology

However, the reported cathode interface layer can only adjust the interface work function and reduce the interface barrier, but cannot simultaneously solve the four problems of active layer morphology, electron mobility, interface barrier and device stability.

Method used

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  • A kind of preparation method of n-type triazine naphthalimide cof conjugated polymer cathode interface layer
  • A kind of preparation method of n-type triazine naphthalimide cof conjugated polymer cathode interface layer
  • A kind of preparation method of n-type triazine naphthalimide cof conjugated polymer cathode interface layer

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Embodiment Construction

[0035] The present invention will be further described below with reference to the accompanying drawings.

[0036] The reaction equation of the present invention is as attached image 3 , the specific reaction steps are as follows: a kind of synthesis steps of n-type triazine naphthalimide COF conjugated polymer cathode interface layer PTPANDISi:

[0037] Step 1: Synthesis of conjugated polymer NDIBr;

[0038] (1) 1.278 g, 3 mmol of 4,9-dibromo-naphthoic anhydride was added to 10 mL of anhydrous acetic acid, and the mixture was stirred at room temperature for 30 minutes. Subsequently, 0.813 g, 8.2 mmol of the compound 5-hexen-1-amine was added dropwise to the reaction system, and the mixture was fully stirred;

[0039] (2) The reaction solution was then heated to 100° C. for reflux reaction for 24 hours.

[0040] (3) After the reaction, the reaction solution was cooled to room temperature, poured into 400 mL of deionized water, stirred and filtered to obtain a precipitate; ...

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Abstract

The invention discloses a preparation method of an n-type triazine naphthalene diimide type COF conjugated polymer cathode interface layer. Synthesized by coupling reaction with 2,4,6-tris(4,4,5,5-tetramethyl-1,3,2-dioxaborane-2-yl)-1,3,5-triazine target product. First, the COF-like two-dimensional dendritic conjugated polymer with siloxane introduced into the side chain enables the material to possess the unique charge transport properties of COF materials; secondly, the lone pair of electrons on the nitrogen atom in the triazine is transferred to the naphthalenediimide It can form a favorable n-type self-doping effect and improve the electrical conductivity of the material; finally, the side chain siloxane-induced assembly and the strong interfacial interaction between the dendrimer and the underlying substrate are used to self-assemble into an ordered arrangement , optimize the morphology of the active layer and improve the carrier mobility, thereby improving the short-circuit current and device efficiency of the device.

Description

technical field [0001] The invention relates to the technical field of cathode interface layers of organic solar cells, in particular to a preparation method of an n-type triazine naphthalimide-based COF conjugated polymer cathode interface layer. Background technique [0002] Traditional fossil energy will be gradually consumed by human beings, but the development of society and human survival are inseparable from energy. The development and utilization of renewable and clean new energy is particularly urgent and important in today's world. Solar energy is favored by researchers all over the world because of its inexhaustible, inexhaustible, green and clean characteristics, and its application technology has developed rapidly in recent years. The key to solar energy applications is solar cell technology that realizes photoelectric conversion. Monocrystalline silicon, polycrystalline silicon and amorphous silicon series solar cells have high requirements on the purity of ce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G61/12H01L51/42H01L51/46
CPCC08G61/122C08G2261/124C08G2261/144C08G2261/18C08G2261/3221C08G2261/3241C08G2261/411C08G2261/91H10K85/151H10K30/20Y02P70/50
Inventor 周丹张和惠徐镇田郑浩岚童永芬谢宇李明俊
Owner NANCHANG HANGKONG UNIVERSITY
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