一种电致变色滤光片、其制备方法及其应用
By constructing quinacridone-based electrochromic polymers P1 and P2, a switchable electrochromic film was prepared, solving the problem of fixed spectral shielding range of the filter. This enabled the filter to automatically adjust according to environmental changes, providing day and night protection, and is suitable for intelligent electrochromic devices.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG UNIV OF TECH
- Filing Date
- 2023-09-28
- Publication Date
- 2026-07-17
AI Technical Summary
Existing filters have a fixed spectral shielding range and cannot be automatically adjusted according to different environmental requirements, resulting in inconvenience in use in different scenarios.
Electrochromic polymers P1 and P2 were constructed using quinacridone as the basic unit to prepare electrochromic films that can switch between black-transparent and yellow-dark gray states. The spectral absorption characteristics of the filter were adjusted by voltage changes, and spectral complementarity was achieved by combining with polymer P3 to prepare an electrochromic filter.
It enables the filter to automatically switch the spectral shielding range under different environments, providing protection against blue light during the day and full-band absorption at night. It has fast response and high cycling stability and is suitable for smart electrochromic devices.
Smart Images
Figure CN117311047B_ABST