隨著環保意識抬頭，研究能具有溫控功能的節能玻璃開始受到重視，而二氧化釩因其具有優異的熱致變色特性，具有良好的應用前景。二氧化釩能夠在溫度上升時產生相變，從原先的單斜晶體轉變成四方晶體，同時由半導體態轉變成金屬態，在金屬態的介電常數虛部項會快速增加，並大幅提高二氧化釩在紅外線區段的反射率，將紅外線阻隔在玻璃窗外，以降低室內溫度達到節能的效果。而瞭解二氧化釩表面的特性對未來智慧窗戶或其他關於熱致變色的應用會有相當大的幫助。此研究透過衰減性全反射技術以一種非破壞性且能有效探測材料介面方法，偵測有無增加鉻層時，成長在金膜上的二氧化釩薄膜有無不同，並觀察二氧化釩表面在經過加熱、通入氣體的過程，其表面光學性質的變化。衰減性全反射技術透過結合光學中的衰減波以及表面電漿現象，令雷射光在特定條件、角度下於介面上激發非輻射性表面電漿共振，並藉由分析其光學圖譜，可得知多層結構各自的介電常數。對於材料介面的光學性質變化相當靈敏。

With the awareness of environmental protection, research on energy-efficient coatings on glass which can regulate temperature is getting more attention. Vanadium dioxide has attracted a great interest for smart window applications because of its promising thermochromic properties. The metal-insulator transition in vanadium dioxide occurs at a conveniently accessible temperature. When above Tc, the monoclinic structure would transform into rutile-like structure. Meanwhile, the transition from the semiconductor to the metallic state causes the imaginary part of dielectric constant substantially to increase. The reflectance in infrared range also rapidly increases, and switching off the infrared outside the window. Regulating the temperature in the building. To the application of smart window or other related thermochromic region, it is helpful to understand the properties of vanadium dioxide surface. In this work, attenuated total reflection(ATR) provides a non-destroyed and effective way to probe the interface of materials. By analyzing the ATR pattern we could obtain each dielectric constant in multilayer. We observing with and without chromium layer, the differentiation of vanadium dioxide deposited on the gold film. Furthermore, in the process of heating and inserting oxygen measures the variation of optical properties on the vanadium dioxide surface.

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