Synthesis of sub-10 nm VO2 nanoparticles films with plasma-treated glass slides by aqueous sol–gel method

Lan, Shi-Di; Cheng, Chih‐Chia; Huang, Chi-Hsien; Chen, Jem-Kun

doi:10.1016/j.apsusc.2015.09.188

Cited by 23 publications

(12 citation statements)

References 42 publications

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“…There is some work focus on multilayer films with more layers for enhanced thermochromic performances. A five-layer thermochromic coating based on TiO 2 /VO 2 /TiO 2 /VO 2 /TiO 2 has been studied [52]. A featured wave-like optical transmittance curve has been measured by the fivelayer coating companying an improved luminous transmittance (45.0% at semiconducting for practical application of this structure.…”

Section: Strategies For Enhanced Luminous Transmittance and Solar Modmentioning

confidence: 99%

“…Based on VO 2 -thermochromic coatings, smart windows can let the solar energy (mainly caused by NIR) in and out during the cold and hot days, respectively, which are shown in Figure 1(c). VO 2 smart coatings are usually used in two forms including flexible foils based on VO 2 nanoparticles [34,[46][47][48][49][50][51][52] and VO 2 -based multilayer films [11,12,33,[53][54][55]. However, for commercial application as smart coatings on windows, there are still many obstacles severely limiting the relative applicability of VO 2 smart coatings.…”

Section: Introductionmentioning

confidence: 99%

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Solar Modulation Utilizing VO2-Based Thermochromic Coatings for Energy-Saving Applications

Cao¹,

Jin²

2018

Emerging Solar Energy Materials

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Energy consumption has become an urgent issue not only for the global environment, but also for people's lives. Among total energy consumption, buildings take nearly 40%. For buildings, energy exchange through windows accounts for over 50% by means of conduction, convection, and radiation. To reduce energy consumption, new structures should be developed for glass surfaces to enhance their thermal insulation properties. Vanadium dioxide (VO 2) is the most well-known thermochromic material, which exhibits a notable optical change from transparent to reflecting in the infrared upon a semiconductor-to-metal phase-transition. In this chapter, we provide a comprehensive summary of advances on the VO 2-based thermochromic coatings. Although the research on VO 2 smart window has been carried on for several decades, the real commercial use of it has not yet been achieved. The hindrance factors against commercial use are conventionally known as the unsatisfactory intrinsic properties of VO 2 material and have recently emerged as new challenges.

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Section: Strategies For Enhanced Luminous Transmittance and Solar Modmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Solar Modulation Utilizing VO2-Based Thermochromic Coatings for Energy-Saving Applications

Cao¹,

Jin²

2018

Emerging Solar Energy Materials

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“…For commercial applications, such as smart window coating, glass is the desirable substrate. e soda lime glass is the most common and cheapest one [14,15]. Considering that, for wet-chemical processes, the crystalline VO 2 phase is typically formed by a high-temperature treatment process.…”

Section: Introductionmentioning

confidence: 99%

Low-Temperature Synthesis of Vanadium Dioxide Thin Films by Sol-Gel Dip Coating Method

Chotirat

Niyomwas

Wongpisan

et al. 2021

Journal of Nanotechnology

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The vanadium dioxide (VO2) thin films were synthesized by sol-gel dipping on a glass slide substrate at low temperature of 500°C in a vacuum tube furnace at a pressure of 2 × 10−3 mbar by 2-step calcination without an intermediate gas purging. Synthesis conditions, including temperature, vacuum pressure, and calcination steps in the vacuum tube furnace, were investigated to find the optimum condition that promoted the formation of VO2 phase. It was found that the 2nd calcination step was very important in realizing the monoclinic vanadium dioxide (VO2 (M)). The results of the valence electron analysis revealed the outstanding phase of VO2 and a small amount of V2O5 and V2O3 phases. The small crystallites of the VO2 were homogeneously distributed on the surface, and the grain was of an irregular shape of ∼220−380 nm in size. The film’s thickness was in a range of 69−74 nm. The film exhibited a metal-to-insulator transformation temperature of ∼68oC and good thermochromic property. Visible optical transmittance remained at ∼40−50% when the sample’s temperature changed from 25 to 80°C for a near infrared (NIR) region.

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“…There are some methods to prepared VO 2 film, such as Sol-Gel [7], CVD [8], sputtering [9], pulsed laser deposition, thermal reduction, and so on [10]. These methods have their own advantages and disadvantages.…”

Section: Introductionmentioning

confidence: 99%

Effects of W6+ Doping on Structure and Electrical Property of VO² (A) Thin Film

Zhang¹,

Pan²,

Dang³

et al. 2017

Proceedings of the 3rd 2017 International Conference on Sustainable Development (ICSD 2017)

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Abstract. Thin films composed of high pure VO 2 (A) doped W 6+ ions were successfully prepared by an inorganic sol-gel method. The effects of W 6+ ions doping on the structure, surface morphology and electrical property the films were investigated. The results show that the solution of W 6+ ions distorted the lattice of VO 2 (A) film, and made the lattice parameter d increase. With W 6+ ions concentration increase, the grain size of the film increased, and the grain shape became rod or block from sphere. The film resistance decreases sharply, near one magnitude with the W 6+ doping concentration increase from 0 to 0.75 at%. And W 6+ doping made the film TCR close to zero from a negative value, the film change to metal from semiconductor.

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Synthesis of sub-10 nm VO2 nanoparticles films with plasma-treated glass slides by aqueous sol–gel method

Cited by 23 publications

References 42 publications

Solar Modulation Utilizing VO2-Based Thermochromic Coatings for Energy-Saving Applications

Solar Modulation Utilizing VO2-Based Thermochromic Coatings for Energy-Saving Applications

Low-Temperature Synthesis of Vanadium Dioxide Thin Films by Sol-Gel Dip Coating Method

Effects of W6+ Doping on Structure and Electrical Property of VO² (A) Thin Film

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