Using the simple interference interactions in a three-layer thin film structure, absorbers in the near infrared with aesthetically pleasing reflective colouration were designed, fabricated, and characterised. By implementing the phase change material, vanadium dioxide (VO 2 ), with its remarkable phase change properties, the absorbers are able to be switched between lower and higher absorption states depending on the external temperature. Conventional fabrication methods involving VO 2 require an annealing process after deposition, but here, VO 2 nanoparticles dispersed in a polymer mixture were employed to allow the simple and scalable spin coating process to be used, without the need for annealing. This simultaneously opens up the possibility of using flexible substrates for bendable devices. At a temperature of around 68 °C, a change in absorption of around 30% is observed between 800–1600 nm, while the vivid subtractive colours are maintained wit...

中文翻译：

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使用二氧化钒纳米粒子在近红外频率下具有可变吸收特性的柔性超表面

使用三层薄膜结构中的简单干扰相互作用，设计，制造和表征了近红外吸收体，具有美观的反射色。通过采用具有显着的相变特性的相变材料二氧化钒（VO 2），可以根据外部温度在较低和较高吸收状态之间切换吸收剂。涉及VO 2的常规制造方法在沉积后需要退火工艺，但是这里，分散在聚合物混合物中的VO 2纳米颗粒被用于允许使用简单且可扩展的旋涂工艺，而无需退火。这同时打开了将柔性基板用于可弯曲装置的可能性。在约68°C的温度下，