论文标题
多光谱电流表面：从可见到微波炉
Multispectral Electro-Optical Surfaces: from Visible to Microwave
论文作者
论文摘要
已经探索了具有变色能力的光学材料，以用于显示设备，智能窗口或视觉外观调制。但是，这些材料的效率具有强大的波长依赖性，这将其功能限制为狭窄的光谱范围。在这里，我们报告了基于石墨烯的电流设备，具有前所未有的光学可调性，涵盖了从可见光到微波炉的整个电磁光谱。我们通过将锂在光学上可访问的设备结构中的将锂进行电化层的电嵌入到石墨烯层中实现了这种非易失性和可逆的可调节性。这种独特的变色能力以及区域选择性的插入功能激发了新的多光谱设备的制造，包括显示器和电光伪装涂层。我们预计这些结果为可编程智能光学表面提供了现实的方法，并在许多科学和工程领域具有潜在的实用性。
Optical materials with colour-changing abilities have been explored for display devices, smart windows, or modulation of visual appearance. The efficiency of these materials, however, has strong wavelength dependence, which limits their functionality to a narrow spectral range. Here, we report graphene-based electro-optical devices with unprecedented optical tunability covering the entire electromagnetic spectrum from the visible to microwave. We achieve this non-volatile and reversible tunability by electro-intercalation of lithium into graphene layers in an optically accessible device structure. This unique colour-changing capability, together with area-selective intercalation, inspires fabrication of new multispectral devices, including display devices and electro-optical camouflage coating. We anticipate that these results provide realistic approaches for programmable smart optical surfaces with a potential utility in many scientific and engineering fields.
