二氧化钒智能热控涂层光学结构原理及研究进展

The traditional thermal control coating with fixed emissivity is difficult to meet the rapid development of China’s aerospace industry,and the VO₂ intelligent thermal control coating,with the advantages of passive adaptation and strong designability,has become a hot spot of research at home and abroad. In this paper,based on the phase transition characteristics of VO₂ metal-insulator,the optical design methods and research progress of VO₂ intelligent thermal control coatings with four structures of F-P resonant cavity,metasurface,photonic crystal and nano-composite film are reviewed by analyzing the emissivity regulation mechanism of VO₂ intelligent thermal control coatings in infrared band. It extracts the key factors affecting the engineering application of VO₂ smart thermal control coatings due to the decrease in spatial stability,and looks forward to the future development trends of VO₂ smart thermal control coatings.