A flexible crystal and optical waveguide material, and a preparation method and application thereof in high-pressure color-changing materials
Flexible crystals were prepared by reacting phenoxazine, dimethyl 5-bromoisophthalate, potassium carbonate, and Pd[P(t-Bu)3]2, which solved the problems of brittleness and single color change in organic crystal materials and achieved flexible and multi-color changing properties, making them suitable for optical waveguides and wearable devices.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG UNIV OF TECH
- Filing Date
- 2026-05-21
- Publication Date
- 2026-07-17
AI Technical Summary
Existing organic crystal materials have several drawbacks in flexible electronics applications, including brittleness and fragility, difficulty in achieving flexibility and high crystallinity, induction of only a single emission color change under a single external stimulus, easy quenching of light emission in pressure-sensitive materials, and a lack of clear structure-property relationships.
Optical waveguide materials were prepared by using phenoxazine, dimethyl 5-bromoisophthalate, potassium carbonate and Pd[P(t-Bu)3]2 as raw materials, through heating reaction, extraction, drying and column chromatography separation and purification. Subsequently, a flexible crystal was grown by dissolving and adding a poor solvent and allowing it to stand, thus realizing the flexibility and high-pressure color-changing properties of the material.
The prepared flexible crystal material has good flexibility, is not easy to break, and can achieve multicolor changes under high pressure. It is suitable for optical waveguides and flexible wearable devices, enhancing its application potential in fields such as information encryption.
Smart Images
Figure CN122404249A_ABST