Spirobifluorene derivative, preparation method thereof and application of spirobifluorene derivative in electrochromic device

Preparation of spirobifluorene derivatives through amino and nitro modification monomers has solved the problem of single color and fast fading of existing spirobifluorene compounds, achieving a richer color range and slower fading, expanding their multiple colors Application in smart devices.

CN119462408AActive Publication Date: 2025-02-18INST OF NEW MATERIALS ZHEJIANG UNIV OF TECH PINGHU CITY +1
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Patent Information

Application Number
CN202411803405.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2025-02-18
Estimated Expiration
2044-12-09

AI Technical Summary

Technical Problem

The existing spirobifluorene compounds have a single color and fade faster, resulting in limited application range.

Method used

By amino and nitro modified monomers, a spirobifluorene derivative with a neutral state and a long-lasting stay after coloring was prepared, and it was applied to electrochromic devices.

Benefits of technology

The application of spirobifluorene derivatives in smart glasses, smart windows, smart skylights, automotive sunroofs and other fields has been expanded, achieving a richer color range and slower fading.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a spirobifluorene derivative, a preparation method thereof and application of the spirobifluorene derivative in an electrochromic device, and belongs to the technical field of organic polymer chemistry. The electrochromic materials with different colors are successfully prepared by exploring the difference between nitro and amino and combining fine regulation and control on a side chain electronic structure, and the materials have the characteristics of high neutral state transmittance and bistable state, and are expected to be applied to the fields of display, anti-counterfeiting, biological analysis and the like. Specifically, the spirobifluorene derivative provided by the invention not only endows the material with an electrochromic function, but also obviously enhances the stability of an electrochromic micromolecule device due to the embedding of a methoxyl unit with high stability, and meanwhile, the spirobifluorene derivative also has the bistable characteristics of being transparent in a neutral state and being kept for a long time after being colored.
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Citation Information

Patent Citations

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