Wide-color-gamut,high-purity,and high-brightness thin film structural colors based on modified Fano resonant structure

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外文摘要：Recently,the Fano resonance has played an increasingly important role in improving the color performance of structural colors.In this study,we further elucidate the asymmetric spectral shape generated by Fano resonance from a phase per-spective and explore four distinct continuum state structures.By integrating the proposed cavity-like structure with a metal-dielectric-metal discrete state,multilayered thin-film structural colors with minimal background reflection,as low as 8％,were successfully achieved.The reflection peak of this structure exhibits a bandwidth of approximately 50 nm and reaches up to 80％,indicating heightened saturation and color brightness.Moreover,by adjusting the thickness,we effortlessly obtained a broader color gamut compared to Adobe RGB(45.2％),covering 56.7％of the CIE color space.Even adjusting a single layer can achieve a color gamut of 47.1％.In experiments,by deliberately choosing low oxygen-dependent materials,excellent RGB colors with high brightness and in high consistency with simulation results were successfully achieved.Therefore,the scheme's simple process for structural color creation,along with its excellent color performance and the ability to effectively replicate simulation characteristics makes it highly valuable in fields like anti-counterfeiting,decoration,display devices,and solar cell panels.

外文关键词：

Fano resonancestructural colorsfull colorthin filmshigh saturation

作者：

陈炜杰、何泽湘、段珍珍、杨坚、王宁、王丹、胡泽雄、陈楠、罗正钱、卜轶坤

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作者单位：

School of Electronic Science and Engineering(National Model Microelectronics College),Xiamen University,Xiamen 361005,China

Fujian Key Laboratory of Ultrafast Laser Technology and Applications,Xiamen University,Xiamen 361005,China

基金：

National Key Research and Development Program of ChinaNational Natural Science Foundation of ChinaFujian Province Science and Technology Planning Project of China

项目编号：

2020YFC2200400623752312022H6015

出版年：

2024

DOI：

10.3788/COL202422.082601

中国光学快报(英文版)

中国光学学会中国科学院上海光学精密机械研究所

中国光学快报(英文版)

CSTPCD

影响因子：1.305

ISSN：1671-7694

年,卷(期)：2024.22(8)