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High‐Purity Hybrid Structural Colors by Enhancing Optical Absorption of Organic Dyes in Resonant Cavity
Advanced Optical Materials ( IF 9 ) Pub Date : 2020-04-30 , DOI: 10.1002/adom.202000317
Zhengmei Yang 1, 2 , Chengang Ji 1 , Qingyu Cui 1 , Lingjie Jay Guo 1
Affiliation  

This work presents a novel approach of incorporating an ultrathin dye film into a classic dielectric‐absorber‐dielectric‐metal resonator configuration for generating high‐purity reflective structural colors. Utilizing a thin film of organic dye having the same color as the targeted reflection color as a part of the cavity layer in the structure, its absorption at complementary color wavelengths is significantly enhanced due to the strong cavity resonances, hence reflection at the unwanted wavelengths strongly suppressed, leading to the improved purity of the desired reflective color. This design principle can be applied to create essentially all colors, and is demonstrated by experiment to produce high‐purity blue and red colors. In addition, the fabricated device exhibits outstanding stability under UV exposure without additional protections compared to traditional organic pigments. The proposed method in this work largely simplifies the design process of high‐purity structural colors, which paves the way for more potential applications in various fields.

中文翻译:

通过增强共振腔中有机染料的光吸收来实现高纯度混合结构色

这项工作提出了一种新颖的方法,将超薄染料膜结合到经典的介电体,吸收体,介电体,金属谐振器配置中,以产生高纯度的反射结构色。利用具有与目标反射色相同颜色的有机染料薄膜作为结构中空腔层的一部分,由于强大的空腔共振,可显着增强其在互补色波长处的吸收,因此可在不想要的波长处强烈反射抑制,导致所需反射色的纯度提高。该设计原理可用于创建几乎所有颜色,并通过实验证明可产生高纯度的蓝色和红色。此外,与传统的有机颜料相比,这种制成的器件在紫外线照射下具有出色的稳定性,而无需额外的保护。这项工作中提出的方法大大简化了高纯度结构色的设计过程,为在各个领域中更多潜在的应用铺平了道路。
更新日期:2020-06-19
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