Light and electrothermal responsive polymer photonic crystals (PCs) modified with 1′‐acryloyl chloride‐3′,3′‐dimethyl‐6‐nitro‐spiro(2H‐1‐benzopyran‐2,2′‐indoline) (SPMA) are proposed, and their dynamic display patterns are achieved through the combination of the SPMA‐modified PCs and a patterned graphite layer. These PCs exhibit fluorescence under UV light irradiation because of the isomerization of the SPMA, which is restricted in the shell of the polymer colloidal spheres. After a voltage is applied to the patterned graphite layer, the fluorescence of PCs in the specific area disappears, and dynamic display patterns are obtained. Under UV light irradiation, the PCs change from the “partial‐fluorescence” state to the initial “fluorescence” state, and the patterns disappear. Using this technique, the PC pattern “M L N” on the glass substrate and PC patterns from “0” to “9” on the paper substrate are fabricated. Thus, these dual‐responsive PCs have potential applications in information recording, anticounterfeiting, dynamic display, and photoelectric devices.

中文翻译：

---

双响应SPMA改性聚合物光子晶体及其动态显示模式

用1'-丙烯酰氯-3'，3'-二甲基-6-硝基螺（2 H提出了-1-苯并吡喃-2,2'-二氢吲哚（SPMA），其动态显示模式是通过将SPMA改性的PC和图案化的石墨层相结合而实现的。这些PC由于SPMA的异构化（在聚合物胶体球壳中受到限制）而在紫外光照射下表现出荧光。在图案化的石墨层上施加电压后，特定区域中PC的荧光消失，获得动态显示图案。在紫外线照射下，PC从“部分荧光”状态变为初始“荧光”状态，并且图案消失。使用该技术，可以制造玻璃基板上的PC图案“ MLN”和纸基板上的PC图案从“ 0”到“ 9”。因此，