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H-type acceptor material and preparation method thereof

A technology of acceptor materials and hydrogen atoms, which is applied in semiconductor/solid-state device manufacturing, electric solid-state devices, semiconductor devices, etc., can solve the problems of poor stability of organic solar cells, and achieve the effect of simple reaction and easy raw materials

Inactive Publication Date: 2018-12-21
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0006] The purpose of the present invention is to propose a rigid H-type acceptor material with adjustable arms and a preparation method thereof to solve the problem of poor stability of organic solar cells in view of the defects in the prior art

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  • H-type acceptor material and preparation method thereof
  • H-type acceptor material and preparation method thereof
  • H-type acceptor material and preparation method thereof

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Embodiment Construction

[0054] Specific embodiments of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0055] This example provides an H-type acceptor material, the fluorenyl double arm and the core pass through the sp 3 Carbon is linked together, and has rigid structure, and its structure is as structural general formula such as structural general formula (I):

[0056]

[0057]

[0058] In the formula:

[0059] R 1 Including: hydrogen atom, alkyl chain.

[0060] R2 includes: hydrogen atom, halogen atom, or photoactive group

[0061] X can be N atom, O atom or S atom, where the following structure can be introduced on the N atom:

[0062]

[0063] where n is a natural number from 1 to 10

[0064] One of the following structures:

[0065]

[0066] Described photoelectric active group comprises:

[0067] Diketopyrrolopyrrole derivatives, indadone derivativ...

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Abstract

The invention discloses an H-type acceptor material and a preparation thereof, and belongs to the field of organic photoelectric material preparation. The acceptor material cannot rotate as both two arms of the acceptor material are connected with a core through sp3 carbon, so that a certain rigid structure is provided. Different photoelectric active groups are imported into the two arms of the material, so that a series of H-type acceptor materials can be obtained. The material has the following characteristics that (1) the raw materials are low in cost and easy to get, so that the cost is low; (2) the reaction condition is mild and the operation is easy; (3) favorable solubility is provided and thin film preparation via spin coating is convenient; and (4) the rigid structure has the advantages of spectrum stability, high glass-transition temperature and electrochemical stability. Therefore, the H-type acceptor material has a favorable application prospect in the field of organic solar cells.

Description

technical field [0001] The invention relates to an H-type acceptor material and a preparation method thereof, belonging to the technical field of organic photoelectric material preparation. Background technique [0002] Nowadays, organic solar cells (Organic Photovoltaic, OPV) based on non-fullerene acceptor materials are developing rapidly, and the photoelectric conversion efficiency has exceeded 15% (Che, X., Li, Y., Qu, Y. ., Forrest, S.R., Nature Energy, 2018, 3(5), 422), making it more and more widely concerned in the field of organic solar cells. Compared with the previously commonly used fullerene acceptor materials, non-fullerene acceptor materials have a wider range of visible light absorption, better stability, good solubility and other advantages and are favored by people. Among them, the small molecule receptor material not only has the above advantages, but also is easier to purify and regulate than the polymer receptor material (Li, S., Zhang, Z., Shi, M., Li,...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D487/04H01L51/42H01L51/46
CPCC07D487/04H10K85/626H10K85/655H10K85/6572H10K85/6576H10K30/00Y02E10/549
Inventor 解令海曹洪涛洪朝燊李波黄维
Owner NANJING UNIV OF POSTS & TELECOMM
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