Robust Large-Sized Photochromic Photonic Crystal Film for Smart Decoration and Anti-Counterfeiting,ACS Applied Materials & Interfaces

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Robust Large-Sized Photochromic Photonic Crystal Film for Smart Decoration and Anti-Counterfeiting
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2022-03-17 , DOI: 10.1021/acsami.2c01211
Huateng Li ₁ , Guowei Zhao ₁ , Mengjing Zhu ₁ , Jia Guo ₁ , Changchun Wang ₁

Affiliation

Photochromic materials are widely investigated due to their vivid color transformation for many real applications. In this work, a new kind of multiangle photochromic photonic crystal (PC) material with high robustness and long durability for smart phone decoration and anticounterfeiting features is fabricated. After thermal mixing of spiropyran powder and monodisperse core-interlayer-shell (CIS) particles, a large-area and high-quality photochromic PC film has been prepared by the self-designed bending-induced ordering technique (BIOT). The spiropyran powder can be well dispersed in the order-structured PC system, so the perfect synergistic combination of photochromism and angle-dependent structure colors can be achieved. The color-switching test for the as-prepared photochromic PC film proved its excellent reversibility and stability. Because of the excellent flexibility of the photo-cross-linked PC films, they can be designed and cut into various shapes with high robustness and long durability. Interestingly, a temperature-controlled photochromic effect was found in this photochromic PC system. Therefore, the as-prepared photochromic PC films can play a significant role in the fields of smart decoration and anticounterfeiting by their unique color switching effects under different stimuli. More importantly, our work verified the feasibility of this route to prepare a series of large-sized advanced smart PC devices by adding versatile functional materials.

中文翻译：

用于智能装饰和防伪的坚固大尺寸光致变色光子晶体薄膜

光致变色材料因其在许多实际应用中的生动色彩转换而被广泛研究。在这项工作中，制造了一种新型多角度光致变色光子晶体（PC）材料，具有高坚固性和长耐用性，用于智能手机装饰和防伪功能。将螺吡喃粉末与单分散核-夹层-壳（CIS）颗粒热混合后，采用自行设计的弯曲诱导有序技术（BIOT）制备了大面积、高质量的光致变色PC薄膜。螺吡喃粉末可以很好地分散在有序结构的PC体系中，从而实现光致变色和角度依赖结构颜色的完美协同组合。所制备的光致变色PC薄膜的颜色转换测试证明了其优异的可逆性和稳定性。由于光交联PC薄膜具有优异的柔韧性，它们可以设计和切割成各种形状，具有高强度和长耐用性。有趣的是，在这种光致变色 PC 系统中发现了温度控制的光致变色效应。因此，所制备的光致变色PC薄膜在不同刺激下具有独特的色彩转换效果，可在智能装饰和防伪领域发挥重要作用。更重要的是，我们的工作验证了该路线通过添加多功能功能材料制备一系列大型先进智能PC设备的可行性。在此光致变色 PC 系统中发现了温度控制的光致变色效果。因此，所制备的光致变色PC薄膜在不同刺激下具有独特的色彩转换效果，可在智能装饰和防伪领域发挥重要作用。更重要的是，我们的工作验证了该路线通过添加多功能功能材料制备一系列大型先进智能PC设备的可行性。在此光致变色 PC 系统中发现了温度控制的光致变色效果。因此，所制备的光致变色PC薄膜在不同刺激下具有独特的色彩转换效果，可在智能装饰和防伪领域发挥重要作用。更重要的是，我们的工作验证了该路线通过添加多功能功能材料制备一系列大型先进智能PC设备的可行性。

更新日期：2022-03-17

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