Abstract
In this paper, we design a sandwich multilayer film structure based on phase-change material Ge2Sb2Te5 (GST). In the visible band, based on the amorphous and crystalline state of GST, visible light absorption and color camouflage can be achieved. The transition between the amorphous and crystalline state of GST by temperature modulation can achieve dynamic color tuning without affecting the absorption. In the infrared band, the structure can realize the infrared camouflage function in the amorphous and crystalline states, which means that it has a higher reflection function in the infrared band. Therefore, the multilayer film based on the phase-change material GST has a simple structure and mature preparation process, which can be effectively compatible with the visible-infrared band to realize the multi-functions of color camouflage, visible light absorption and infrared camouflage.
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