Abstract: A post-heat-treatable substrate with a thermochromic film. The post-heat-treatable substrate includes a base substrate, a thermochromic film coating the base substrate, an auxiliary film formed on at least one of the upper surface and the lower surface of the thermochromic film, and a sacrificial film formed between the thermochromic film and the auxiliary film. The sacrificial film is made of metal. Accordingly, the thermochromic material is prevented from agglomerating during post-heat-treatment of the substrate. The auxiliary film prevents oxygen and nitrogen from diffusing into the thermochromic film, so that high-temperature heat treatment, such as a process for tempering the substrate, a process for heat-strengthening the substrate and a process for forming the substrate to become curved, can be conducted on the substrate.

Abstract: A method of manufacturing a thermochromic window, with which the thermochromic window can have increased visible light transmittance while maintaining the thermochromic characteristics thereof. The method includes the steps of forming a first transparent conductive film on a substrate, forming a pre-thermochromic thin film on the first transparent conductive film, and heat-treating a multilayer structure that includes the substrate, the first transparent conductive film and the pre-thermochromic thin film, thereby reforming the pre-thermochromic thin film into a thermochromic thin film.

Abstract: A post-heat-treatable substrate with a thermochromic film. The post-heat-treatable substrate includes a base substrate, a thermochromic film coating the base substrate, an auxiliary film formed on at least one of the upper surface and the lower surface of the thermochromic film, and a sacrificial film formed between the thermochromic film and the auxiliary film. The sacrificial film is made of metal. Accordingly, the thermochromic material is prevented from agglomerating during post-heat-treatment of the substrate. The auxiliary film prevents oxygen and nitrogen from diffusing into the thermochromic film, so that high-temperature heat treatment, such as a process for tempering the substrate, a process for heat-strengthening the substrate and a process for forming the substrate to become curved, can be conducted on the substrate.