Hybrid films of VO<sub>2</sub> nanoparticles and a nickel(<scp>ii</scp>)-based ligand exchange thermochromic system: excellent optical performance with a temperature responsive colour change

Zhu, Jingting; Huang, Aibin; Ma, Hao; Chen, Yunxiang; Zhang, Sanpei; Ji, Shidong; Bao, Shanhu; Jin, Ping

doi:10.1039/c6nj03369e

Cited by 52 publications

(41 citation statements)

References 32 publications

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“…6). Some transition metal complexes (TMCs) that exhibit thermochromism with little T lum loss at high temperature are chosen to be hybridized with VO 2 nanoparticles [45,68,84]. The used TMCs can partly absorb visible light and change color as a response to temperature change upon interaction with an appropriate donor solvent and effectively avoid severe damage to T lum at high temperature because the absorption peaks are staggered with the extremum of the light-adapted eye sensitivity function.…”

Section: Composite Films Based On Vo 2 Nanoparticlesmentioning

confidence: 99%

“…7). TMCs like ILNi-Br and IL-Co-Br have also been studied with robust improvements of thermochromic performances of VO 2 nanoparticles [45,84].…”

Section: Composite Films Based On Vo 2 Nanoparticlesmentioning

confidence: 99%

“…That means that the transmittance in the visible light region for VO 2 smart coating of metallic state should be maintained at least 50%, while the coating shows higher luminous transmittance of semiconducting state. Some works have been reported to increase DT sol of VO 2 by mixing with specific materials shows a robust contrast in the visible light region in different temperatures [45,68]. However, more investigations are required for a facile and cheap method to achieve the balance between luminous transmittances and solar modulation ability of VO 2 based smart coatings.…”

Section: Balance Between Luminous Transmittances and Solar Modulationmentioning

confidence: 99%

“…VO 2 smart coatings are usually used in two forms including flexible foils based on VO 2 nanoparticles [31,[43][44][45][46][47][48][49] and VO 2 based multilayer films [11,12,30,[50][51][52]. However, for commercial application as smart coatings on energy efficient fenestrations, there are still several obstacles severely limiting the relative applicability of VO 2 smart coatings.…”

Section: Introductionmentioning

confidence: 99%

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Review on thermochromic vanadium dioxide based smart coatings: from lab to commercial application

et al. 2018

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With an urgent demand of energy efficient coatings for building fenestrations, vanadium dioxide (VO 2 )-based thermochromic smart coatings have been widely investigated due to the reversible phase transition of VO 2 at a critical transition temperature of 68°C, which is accompanied by the modulation of solar irradiation, especially in the near-infrared region. As for commercial applications in our daily life, there are still some obstacles for VO 2 -based smart coatings, such as the high phase transition temperature, optical properties (luminous transmittance and solar modulation ability), environmental stability in a long-time period, as well as mass production. In this review, recent progress of thermochromic smart coatings to solve above obstacles has been surveyed. Meanwhile, future development trends have also been given to promote the goal of commercial production of VO 2 smart coatings.

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Section: Composite Films Based On Vo 2 Nanoparticlesmentioning

confidence: 99%

“…7). TMCs like ILNi-Br and IL-Co-Br have also been studied with robust improvements of thermochromic performances of VO 2 nanoparticles [45,84].…”

Section: Composite Films Based On Vo 2 Nanoparticlesmentioning

confidence: 99%

Section: Balance Between Luminous Transmittances and Solar Modulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Review on thermochromic vanadium dioxide based smart coatings: from lab to commercial application

et al. 2018

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“…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%

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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Emerging Thermal‐Responsive Materials and Integrated Techniques Targeting the Energy‐Efficient Smart Window Application

Zhou

et al. 2018

Adv Funct Materials

390

233

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Architectural windows that smartly regulate indoor solar radiation by changing their optical transmittance in response to thermo-stimuli have been developed as a promising solution toward reducing the energy consumption of buildings. Recently, energy-efficient smart window technology has attracted increasing scientific interest, with the exploration of energyefficient novel materials as well as integration with practical techniques to generate various desired multi-functionalities. This review systematically summarizes emerging thermoresponsive materials for smart window applications, including hydrogels, ionic liquids, perovskites, metamaterials, and liquid crystals. These are compared with vanadium dioxide (VO2), a conventional and extensively studied material for thermochromic smart window applications. In addition, recent progress on cutting-edge integrated techniques for smart windows is covered, including electro-thermal techniques, self-cleaning, wettability and also 2 integration with solar cells for bifunctional energy conservation and generation. Finally, opportunities and challenges relating to thermochromic smart windows and prospects for future development are discussed. features (Figure 1b); (2) passivity, with their automatic response to temperature cutting down the need for switch systems, for example electrical control requiring external energy and human manipulation; (3) rational stimulus-response, with regulation by indoor temperature rather than UV-triggered optical modulation in photochromic materials. The table of contents entry:Smart windows are promised significant contribution to the economization of building energy consumption. The rapid development of thermoresonsive materials and integrated techniques provide novel directions beyond conventional pure VO2-based thermochromic smart windows. The review summarizes emerging materials, including hydrogels, ionic liquids, perovskites, and metamaterials and integrated techniques, covering electro-thermal devices, self-cleaning, wettability, and integration with solar cells.

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Hybrid films of VO₂ nanoparticles and a nickel(ii)-based ligand exchange thermochromic system: excellent optical performance with a temperature responsive colour change

Abstract: This work reports a VO2/NLETS hybrid film with a 127% increase in ΔTsol and an evident temperature-responsive colour change.

Cited by 52 publications

References 32 publications

Review on thermochromic vanadium dioxide based smart coatings: from lab to commercial application

Review on thermochromic vanadium dioxide based smart coatings: from lab to commercial application

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

Emerging Thermal‐Responsive Materials and Integrated Techniques Targeting the Energy‐Efficient Smart Window Application

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Hybrid films of VO2 nanoparticles and a nickel(ii)-based ligand exchange thermochromic system: excellent optical performance with a temperature responsive colour change

Abstract: This work reports a VO2/NLETS hybrid film with a 127% increase in ΔTsol and an evident temperature-responsive colour change.

Cited by 52 publications

References 32 publications

Review on thermochromic vanadium dioxide based smart coatings: from lab to commercial application

Review on thermochromic vanadium dioxide based smart coatings: from lab to commercial application

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

Emerging Thermal‐Responsive Materials and Integrated Techniques Targeting the Energy‐Efficient Smart Window Application

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Hybrid films of VO₂ nanoparticles and a nickel(ii)-based ligand exchange thermochromic system: excellent optical performance with a temperature responsive colour change