祝贺蒋浩、李刚、马会茹、罗巍等合作撰写的论文“Versatile Double-Bandgap Photonic Crystals of High Color Saturation”被Nanomaterials(2022年IF：5.3，JCR1区期刊)接收，并在线发表(doi: 10.3390/nano13192632) 。

双带隙光子晶体（PC）在彩色显示等领域中有重要应用潜力，但目前的双带隙光子晶体大多存在色彩饱和度较低且调制能力弱等问题。在本工作中，我们提出了一种利用两种原色光子纳米链 (PNC) 作为颜料，通过传统的RGB配色，即以适当配比简单混合得到双带隙光子墨水的方法。这种光子墨水在外磁场下能衍射典型的次生色和其它复合色。在这种方法中，显示三原色的磁响应PNC用氢键诱导-磁场辅助模板聚合的方法合成，具有合适的链长、和较窄的半峰宽。这样制备的双带隙光子墨水能够呈现出高色彩饱和度。此外，通过将PNC嵌入聚丙烯酰胺等凝胶中，可以轻松制备出柔性双带隙PC薄膜，从而无需外部磁场即可实现快速稳定的显示性能。这项研究不仅展示了PNC在构建多带隙PC方面的独特优势，而且研制了PNC在防伪和柔性可穿戴设备领域应用的可行性。

    原文摘要如下：Double-bandgap photonic crystals (PCs) exhibit significant potential for applications in various color display-related fields. However, they show low color saturation and inadequate color modulation capabilities. This study presents a viable approach to fabricate double-bandgap photonic inks diffracting typical secondary colors and other composite colors by simply mixing two photonic nanochains (PNCs) of different primary colors as pigments in an appropriate percentage following the conventional RGB color matching method. In this approach, the PNCs are magnetically responsive and display three primary colors that can be synthesized by combining hydrogen bond-guided and magnetic field (H)-assisted template polymerization. The as-prepared double-bandgap photonic inks present high color saturation due to the fixed and narrow full-width at half-maxima of the parent PNCs with a suitable chain length. Furthermore, they can be used to easily produce a flexible double-bandgap PC film by embedding the PNCs into a gel, such as polyacrylamide, facilitating fast steady display performance without the requirement of an external magnetic field. This research not only presents the unique advantages of PNCs in constructing multi-bandgap PCs but also establishes the feasibility of utilizing PNCs in practical applications within the fields of anti-counterfeiting and flexible wearable devices.