## 1 Introduction  
In response to a large energy-consuming and environmentally deteriorating condition, developing energy-saving materials and sustainable energy has aroused wide attention. Vanadium dioxide (VO\({}_{2}\)) thin film is a first-order phase-changed material with superfast reaction speed that is near the critical temperature, 340 K [1; 2]. This phase transformation is called a metal-insulator transition (MIT), and involves significant changes in electrical and optical characteristics. Its phase switching behavior makes VO\({}_{2}\) a hopeful candidate for a variety of applications, such as smart windows [3], sensor devices [4], ultrafast switches [5], Mott field effect transistors [4; 6], etc. Various techniques have been developed to form VO\({}_{2}\) thin films, for instance, molecular beam epitaxy [7], pulsed laser deposition [8], magnetron sputtering [9], and chemical vapor deposition [10]. Over the past decades, high-quality VO\({}_{2}\) thin films with the single crystalline characteristics have been seeking because of the impact on MIT features. It is known that the characteristics of the chosen substrates play a major role in the thermochromic properties of VO\({}_{2}\) thin films [11; 12]. A lot of single crystals have been employed to act as the growth substrates, such as titanium dioxide (TiO\({}_{2}\)), silica (SiO\({}_{2}\)), sapphire (Al\({}_{2}\)O\({}_{3}\)), and magnesium fluoride (MgF\({}_{2}\)). The employ of single crystals results in a high expense for the device preparations and therefore immensely limits practical manufacture based on VO\({}_{2}\) thin films. As an alternative approach, common glass substrates with very low cost and good optical transmittance are potentially promising for the production of smart windows and other transferable infrared devices. However, VO\({}_{2}\) thin films that are directly grown onto conventional glass substrates are generally of poor crystallinity. Hence, single-layer VO\({}_{2}\)/glass thin films have worse MIT and photoelectric properties [13; 14]. In particular, the luminous transmittance and solar modulation ability are often especially bad in single-layer VO\({}_{2}\)/glass structures, which limits the practical manufacture of VO\({}_{2}\)-based smart windows. Thus, it is the need of the immediate to find a way to optimize the crystallinity and photoelectric properties in VO\({}_{2}\)/glass heterostructures. One way to do this is to design and fabricate a multilayered structure. Multilayered VO\({}_{2}\) thin films have been completed on different substrates by use of \"buffer layers\" of materials, such as TiO\({}_{2}\), SnO\({}_{2}\), ZnO [15; 16; 17], conductive oxides (Aluminum-doped Zinc Oxide (AZO), Fluorine Tin Oxide (FTO), Indium Tin Oxide (ITO), etc.) [18; 19; 20], metals (Ag, Cu, etc. ), thin films [21], etc. Recently, thin film metallic glasses (TFMGs) were introduced and showed better surface roughness [22] and good optical properties [23; 24]. In particular, Zr-based TFMG have received much scientific research attention for potential applications, since their good mechanical, tribological and fatigue properties, and their corrosion resistance and excellent adhesion [25; 26; 27; 28]. Recently, [PERSON] found that the Zr-based thin film metallic glasses (Cu\({}_{50}\)Zr\({}_{50}\)) have excellent near-infrared transmission (larger than 80%) [28]. Cu\({}_{50}\)Zr\({}_{50}\), which can be prepared at room temperature, is a good candidate for template layers. The excellent near-infrared transmission and the appearance of the surface plasmon polaritons (SPPs) is anticipated to be favorable for the optical property of VO\({}_{2}\) thin films. Motivated by the above demands for the thermochromic application of VO\({}_{2}\)/glass thin films, in the present study we constructed a Zr-based thin film metallic glass (VO\({}_{2}\)/Cu\({}_{50}\)Zr\({}_{50}\)/glass) with a multilayer structure, consisting of Cu\({}_{50}\)Zr\({}_{50}\) TFMG as a buffer layer on amorphous glass substrates.