Photoresponsive components for electric and electronic systems have received considerable attention, mainly due to the low cost of used materials and their manufacturing in mild conditions. Optically responsive materials have been prepared blending polymers with photochromic molecules to obtain systems with tuneable properties. Among photoresponsive systems, some have been developed to provide light-induced capacitance switching. Reported systems have been obtained from polymeric blends with azobenzenes and diarylethenes, while spiropyran copolymers were not yet fully investigated. To form a better view of photochromic materials performances in this field, we report the behaviour of three spiropyran-based dielectric materials in active capacitors. We studied the UV- and temperature-dependent switching of systems by varying test conditions. Materials, selected on their thermomechanical properties, clearly indicate their optical responsiveness, with significant dielectric properties changes in respect to reference materials non containing spiropyran moieties. We also demonstrate that light-induced capacitance switching is mainly related to spiropyran-to-merocyanine isomerization, thus the phenomenon is reversible after the inverse isomerization in the dark. The observed reversible and replicable capacitance switching allows using prepared materials in reusable responsive electronic systems.

电气和电子系统的光敏组件已受到相当大的关注，这主要是由于使用过的材料的成本低以及它们在温和条件下的制造。已经制备了将聚合物与光致变色分子混合以得到具有可调节性质的系统的光响应性材料。在光响应系统中，已经开发了一些系统来提供光感应电容切换。已从与偶氮苯和二芳烃的聚合物共混物中获得了报道的体系，而螺吡喃共聚物尚未得到充分研究。为了更好地了解光致变色材料在该领域的性能，我们报告了三种基于吡喃吡喃的介电材料在有源电容器中的行为。我们通过改变测试条件研究了与紫外线和温度有关的系统切换。根据其热机械性能选择的材料清楚地表明了它们的光学响应性，相对于不含螺吡喃部分的参考材料，介电性能发生了显着变化。我们还证明，光诱导的电容转换主要与螺吡喃-甲基花菁的异构化有关，因此，在黑暗中进行反向异构化后，该现象是可逆的。观察到的可逆和可复制电容切换允许在可重复使用的响应式电子系统中使用准备好的材料。我们还证明，光诱导的电容转换主要与螺吡喃-甲基花菁的异构化有关，因此，在黑暗中进行反向异构化后，该现象是可逆的。观察到的可逆和可复制电容切换允许在可重复使用的响应式电子系统中使用准备好的材料。我们还证明，光诱导的电容转换主要与螺吡喃-甲基花菁的异构化有关，因此，在黑暗中进行反向异构化后，该现象是可逆的。观察到的可逆和可复制电容切换允许在可重复使用的响应式电子系统中使用准备好的材料。