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首页> 外文期刊>Advanced Functional Materials >Highly Brilliant Noniridescent Structural Colors Enabled by Graphene Nanosheets Containing Graphene Quantum Dots
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Highly Brilliant Noniridescent Structural Colors Enabled by Graphene Nanosheets Containing Graphene Quantum Dots

机译：包含石墨烯量子点的石墨烯纳米片可实现高度鲜艳的非虹彩结构色

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摘要

The most important properties of noniridescent structural colors of amorphous photonic structures (APS) are sufficient color brightness and saturation, which are difficult to be optimized simultaneously. Herein, highly saturated and brilliant noniridescent structural colors are achieved by introducing graphene nanosheets, which contain a fraction of graphene quantum dots (GQDs), into the short-range ordered APS. The effective modulation of the photoluminescence (PL) of GQDs by the selective enhancement of absorption at the blue pseudo photonic bandgap edges of the APS boosts the PL with wavelength matching that of the photonic bandgap and thus enables high structural color brightness; the uniform light absorption of graphene nanosheets in the whole visible spectra contributes to the high color saturation. Furthermore, by using APS films with short-range order as templates, a brilliant colorful humidity sensor is demonstrated. Compared with the conventional sensing platform based on photonic crystals, the humidity sensor with brilliant noniridescent structural colors is more convenient by avoiding the confusing color dependence on the viewing angles. The improvement in the structural color brightness of the APS films by facile graphene doping will facilitate their practical applications in fields of decorations, packaging, pigments, sensors, displays, or other color-related areas.
机译：非晶光子结构（APS）的非虹彩结构色最重要的属性是足够的颜色亮度和饱和度，很难同时优化它们。在本文中，通过将包含一部分石墨烯量子点（GQD）的石墨烯纳米片引入到短程有序APS中，可以实现高度饱和和明亮的非虹彩结构色。通过选择性增强APS的蓝色伪光子带隙边缘处的吸收来有效调制GQD的光致发光（PL），从而提高PL的波长，使其与光子带隙的波长匹配，从而实现高结构色亮度；石墨烯纳米片在整个可见光谱中的均匀光吸收有助于实现高色彩饱和度。此外，通过使用短距离的APS胶片作为模板，展示了一种出色的彩色湿度传感器。与传统的基于光子晶体的传感平台相比，具有明亮的非虹彩结构颜色的湿度传感器可避免因视角对颜色造成的混乱而更加方便。通过容易地石墨烯掺杂来改善APS膜的结构颜色亮度，将有助于其在装饰，包装，颜料，传感器，显示器或其他与颜色有关的领域中的实际应用。

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  • 来源
    《Advanced Functional Materials》 |2018年第29期|1802585.1-1802585.8|共8页
  • 作者

    Zhang Yingxue; Han Peng; Zhou Haiyan; Wu Na; Wei Yu; Yao Xi; Zhou Jinming; Song Yanlin;

  • 作者单位

    Hebei Normal Univ, Key Lab Inorgan Nanomat Hebei Prov, Coll Chem & Mat Sci, Shijiazhuang 050024, Hebei, Peoples R China;

    Hebei Normal Univ, Key Lab Inorgan Nanomat Hebei Prov, Coll Chem & Mat Sci, Shijiazhuang 050024, Hebei, Peoples R China;

    Hebei Normal Univ, Key Lab Inorgan Nanomat Hebei Prov, Coll Chem & Mat Sci, Shijiazhuang 050024, Hebei, Peoples R China;

    Hebei Normal Univ, Key Lab Inorgan Nanomat Hebei Prov, Coll Chem & Mat Sci, Shijiazhuang 050024, Hebei, Peoples R China;

    Hebei Normal Univ, Key Lab Inorgan Nanomat Hebei Prov, Coll Chem & Mat Sci, Shijiazhuang 050024, Hebei, Peoples R China;

    City Univ Hong Kong, Dept Biomed Sci, Hong Kong, Hong Kong, Peoples R China;

    Hebei Normal Univ, Key Lab Inorgan Nanomat Hebei Prov, Coll Chem & Mat Sci, Shijiazhuang 050024, Hebei, Peoples R China;

    Chinese Acad Sci, Key Lab Green Printing, Inst Chem, Beijing 100190, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    amorphous photonic structures; graphene quantum dots; humidity sensors; noniridescence; structural coloration;

    机译：非晶光子结构;石墨烯量子点;湿度传感器;无虹彩;结构着色;

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