Department of Chemical Engineering and Materials Science, University of California, Irvine, Irvine, CA 92697, USA.
Department of Chemistry, University of California, Irvine, Irvine, CA 92697, USA.
Science. 2018 Mar 30;359(6383):1495-1500. doi: 10.1126/science.aar5191.
Materials and systems that statically reflect radiation in the infrared region of the electromagnetic spectrum underpin the performance of many entrenched technologies, including building insulation, energy-conserving windows, spacecraft components, electronics shielding, container packaging, protective clothing, and camouflage platforms. The development of their adaptive variants, in which the infrared-reflecting properties dynamically change in response to external stimuli, has emerged as an important unmet scientific challenge. By drawing inspiration from cephalopod skin, we developed adaptive infrared-reflecting platforms that feature a simple actuation mechanism, low working temperature, tunable spectral range, weak angular dependence, fast response, stability to repeated cycling, amenability to patterning and multiplexing, autonomous operation, robust mechanical properties, and straightforward manufacturability. Our findings may open opportunities for infrared camouflage and other technologies that regulate infrared radiation.
材料和系统静态反射电磁光谱红外区域的辐射，为许多成熟技术的性能提供支持，包括建筑隔热、节能窗、航天器部件、电子屏蔽、集装箱包装、防护服和伪装平台。开发其自适应变体，其中红外反射特性可对外界刺激做出动态响应，已成为一个重要的未满足的科学挑战。受头足类动物皮肤的启发，我们开发了自适应红外反射平台，其具有简单的致动机制、较低的工作温度、可调谐的光谱范围、较弱的角度依赖性、快速响应、对重复循环的稳定性、易于图案化和复用、自主操作、坚固的机械性能和简单的制造工艺。我们的发现可能为红外伪装和其他调节红外辐射的技术提供机会。
