Wang Yuetang, Yuan Liming, Mao Yong, Huang Cheng, Huang Jingkai, Ma Xiaoliang, Qi Yuzhuo, Liu Yang, Lin He, Luo Xiangang
State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China.
School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China.
Nanophotonics. 2024 May 17;13(17):3123-3133. doi: 10.1515/nanoph-2024-0125. eCollection 2024 Jul.
With the rapid development and wide application of visible (VIS) and infrared (IR) detections, it is necessary to explore visible-infrared (VIS-IR) compatible camouflage. Here, we report a VIS-IR compatible and independent camouflage device which is composed of the upper IR-transparent VIS-color-patterned layer and the lower electrochromic IR layer. The upper layer has amorphous photonic structure of polystyrene nanospheres (PSNSs). By customizing the PSNS size, various colors can be realized for VIS camouflage. The lower electrochromic IR layer takes advantage of multiwall carbon nanotubes (MWCNTs) as the electrode as well as the IR active material. Experimental results reveal that different colors (including blue, green, and purple) have been obtained, and the IR emissivity can be electrically regulated from 0.43 to 0.9. Moreover, the prototype also exhibits good electrical stability as well as hydrophobic characteristic (the water contact angle of the outmost surface exceeds 120°). These output performances demonstrate the success of our design strategy for promoting the finding applied in camouflage fields as well as energy conservation fields.
随着可见光（VIS）和红外（IR）探测技术的快速发展与广泛应用，探索可见光 - 红外（VIS - IR）兼容伪装变得十分必要。在此，我们报道了一种可见光 - 红外兼容且独立的伪装装置，它由上层的红外透明可见光彩色图案层和下层的电致变色红外层组成。上层具有聚苯乙烯纳米球（PSNSs）的非晶光子结构。通过定制PSNS的尺寸，可以实现用于可见光伪装的各种颜色。下层的电致变色红外层利用多壁碳纳米管（MWCNTs）作为电极以及红外活性材料。实验结果表明，已获得不同颜色（包括蓝色、绿色和紫色），并且红外发射率可以通过电调节从0.43到0.9。此外，该原型还表现出良好的电稳定性以及疏水特性（最外层表面的水接触角超过120°）。这些输出性能证明了我们的设计策略在促进伪装领域以及节能领域应用方面的成功。
