Polymer film and preparation method and application thereof

A technology of polymer film and conjugated polymer, which is applied in the field of polymer solar cells, can solve the problems of easy residue of additives, lower battery performance, unfavorable flexible plastic solar cells, etc., and achieve good stability, efficient transmission and collection, and low cost cheap effect
CN106410033AInactive Publication Date: 2017-02-15NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
Publication Date
2017-02-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a polymer film and a preparation method and application thereof and belongs to the technical field of a polymer solar battery. According to the polymer film, the method and the application, through utilization of a feature that chlorophenol selectively dissolves receptors: fullerene derivative and does not dissolve donors: polymer, postprocessing is carried out on conjugated polymer-fullerene derivative blended film by employing o-chlorophenol alcoholic solution, thereby preparing the polymer film with adjustable receptor vertical concentration distribution. After the prepared blended film is applied to a reverse polymer battery, a structure that donors are gathered at an anode side and the receptors are gathered at a cathode side is formed, and relatively independent electron and hole transfer channels are formed in an active layer. Separation of excitons and transfer of charge carriers are effectively improved, thereby clearly improving the short circuit current and conversion efficiency of the battery. The battery with a reverse structure has better stability. Moreover, the polymer film, the method and application have the advantages of simple preparation technology, easy operation, low cost and high repeatability.
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Description

technical field

[0001] The invention belongs to the technical field of polymer solar cells, and in particular relates to a polymer film and its preparation method and application. Background technique

[0002] In recent years, polymer solar cells based on conjugated polymers and fullerene derivatives have attracted attention due to their simple structure, low cost, light weight, bendability, and industrial roll-to-roll process. By optimizing the design, synthesizing new polymer donor materials and fullerene derivative acceptor materials, and optimizing each transport layer, the conversion efficiency of bulk heterojunction polymer solar cells has been increased to more than 11%. However, due to the corrosiveness of the PEDOT:PSS in contact with the positive electrode and the easy oxidation of the negative electrode with low work function, the traditional structure of the polymer solar cell causes poor stability of the battery; and due to the surface potential energy of the po...

Claims

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