A conjugated macromolecule based on asymmetric multi-fused rings and a preparation method and application thereof

By developing asymmetric multi-fused-ring conjugated macromolecules as active layer materials, the problems of high cost and weak absorption of fullerene derivatives in inorganic photodetectors have been solved, achieving high efficiency in photoelectric conversion and light capture.

CN122444748APending Publication Date: 2026-07-24INST OF CHEM CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF CHEM CHINESE ACAD OF SCI
Filing Date
2025-01-23
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing inorganic photodetectors are complex and costly to manufacture, limiting their application in flexible and portable devices. Furthermore, fullerene derivatives, as active layer materials, suffer from difficulties in energy level tuning and weak absorption in the visible light region.

Method used

Develop conjugated macromolecules based on asymmetric multi-fused rings, which have strong absorption properties in the visible and infrared regions, and use them as electron acceptor materials for the fabrication of photodetectors and solar cells.

Benefits of technology

It provides active layer materials with narrow optical band gaps and suitable energy levels, which improve the performance of photodetectors and solar cells, and are suitable for use in photodetectors, solar cells, organic photodetectors and organic solar cells.

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Abstract

The application discloses a conjugated macromolecule based on asymmetric multi-condensed rings and a preparation method and application thereof. The conjugated macromolecule based on asymmetric multi-condensed rings has a structural formula as shown in the following formula I. The conjugated macromolecule based on asymmetric multi-condensed rings has strong visible and infrared light absorption characteristics, a relatively narrow optical band gap and a suitable energy level, and can be used as an electron acceptor material and can be used for preparing a light detector, a solar cell, an organic photoelectric detector or an organic solar cell.
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