The SnO₂/VO₂/SnO₂ (SVS) multilayer films were prepared using pulsed laser deposition and were characterized by X-ray diffraction, Raman spectroscopy, scanning electron microscopy, Hall Effect Measurement System, double beam spectrophotometer and contact angle measurements. The results showed that SVS multilayer films with excellent thermochromic properties were obtained by adjusting the preparation temperature of the SnO₂ buffer layer and antireflection layer. When the preparation temperature of the SnO₂ layer was 320 °C, the phase transition amplitude (ΔR) of the VO₂ film reached 354 times and both the phase transition temperature (T_c) and hysteresis loop width (ΔH) could be effectively reduced. Meanwhile, the SVS multilayer film had satisfactory luminous transmittance (50.2%) and solar modulation ability (15.3%), achieving the balance of optical properties. In addition, all the SVS multilayer films exhibited excellent hydrophobicity. Boiling water experiments show that the service life of SVS tri-layer film is twice that of SV bi-layer film. This work suggests that the SVS multilayer films are a good candidate for VO₂-based smart windows.

使用脉冲激光沉积制备SnO ₂ / VO ₂ / SnO ₂（SVS）多层膜，并通过X射线衍射，拉曼光谱，扫描电子显微镜，霍尔效应测量系统，双束分光光度计和接触角测量对其进行表征。结果表明，通过调节SnO ₂缓冲层和减反射层的制备温度，可获得具有优异的热致变色性能的SVS多层膜。当SnO ₂层的制备温度为320°C时，VO ₂膜的相变幅度（ΔR）达到354倍，并且两者的相变温度（T_c）可以有效地减小磁滞回线宽度（ ΔH）。同时，SVS多层膜具有令人满意的透光率（50.2％）和日光调制能力（15.3％），实现了光学性能的平衡。另外，所有的SVS多层膜都表现出优异的疏水性。沸水实验表明，SVS三层膜的使用寿命是SV双层膜的两倍。这项工作表明，SVS多层膜是基于VO ₂的智能窗户的理想选择。