Smart optically active VO2 nanostructured layers applied in roof-type ceramic tiles for energy efficiency

Gonçalves, Aldina; Resende, João; Marques, Ana C.; Pinto, Joana; Nunes, Daniela; Marie, A. de Sainte; Gonçalves, Roger; Pereira, L.; Fortunato, Elvira

doi:10.1016/j.solmat.2016.02.001

Cited by 54 publications

(32 citation statements)

References 42 publications

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“…Figure e demonstrates the nucleation and growth of VO 2 (M) from the parent VO 2 (B) nanorods . As regards the complete transfer from VO 2 (B) to VO 2 (M) by annealing, different researchers reported distinct annealing conditions because of the diverse morphology and different crystallinity of VO 2 (B) . Corr et al prepared VO 2 (B) nanorods with length and width of about 1 µm and 75 nm, respectively, which can be transformed to VO 2 (M) at 700 °C for 1 h under argon .…”

Section: Hydrothermal Combined Thermal Treatment Synthesis Of Vo2(m)mentioning

confidence: 99%

Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Magdassi

Gao

et al. 2017

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Vanadium dioxide (VO ) is a widely studied inorganic phase change material, which has a reversible phase transition from semiconducting monoclinic to metallic rutile phase at a critical temperature of τ ≈ 68 °C. The abrupt decrease of infrared transmittance in the metallic phase makes VO a potential candidate for thermochromic energy efficient windows to cut down building energy consumption. However, there are three long-standing issues that hindered its application in energy efficient windows: high τ , low luminous transmittance (T ), and undesirable solar modulation ability (ΔT ). Many approaches, including nano-thermochromism, porous films, biomimetic surface reconstruction, gridded structures, antireflective overcoatings, etc, have been proposed to tackle these issues. The first approach-nano-thermochromism-which is to integrate VO nanoparticles in a transparent matrix, outperforms the rest; while the thermochromic performance is determined by particle size, stoichiometry, and crystallinity. A hydrothermal method is the most common method to fabricate high-quality VO nanoparticles, and has its own advantages of large-scale synthesis and precise phase control of VO . This Review focuses on hydrothermal synthesis, physical properties of VO polymorphs, and their transformation to thermochromic VO (M), and discusses the advantages, challenges, and prospects of VO (M) in energy-efficient smart windows application.

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Section: Hydrothermal Combined Thermal Treatment Synthesis Of Vo2(m)mentioning

confidence: 99%

Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Magdassi

Gao

et al. 2017

Small

274

175

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“…Several chemical, electrochemical and physical techniques have been employed to grow different TiO 2 nanostructures [3,[23][24][25][26] with different properties, like thermal evaporation [27], potentiostatic anodization [28], electrospinning [29], precipitation [30], solvothermal and hydrothermal synthesis, whether by conventional heating [31] or microwave radiation [3]. The use of this latter synthesis technique has been growing lately for different types of nanostructured semiconductors [3,[32][33][34][35][36].…”

Section: Solvothermal Methods Assisted By Microwave Radiationmentioning

confidence: 99%

Photocatalytic Activity of TiO2 Nanostructured Arrays Prepared by Microwave-Assisted Solvothermal Method

Pimentel¹,

Nunes²,

Pereira³

et al. 2016

Semiconductor Photocatalysis - Materials, Mechanisms and Applications

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The use of metal-oxide-semiconductor nanostructures as photocatalytic materials has been an area of intense research over the last decade, and in this field, titanium dioxide TiO receives much attention. TiO is an attractive material since it is stable, insoluble, non-toxic, resistant to corrosion and relatively inexpensive. In this chapter, we will demonstrate the influence of different solvents on the synthesis of TiO nanostructures considering a solvothermal method assisted by microwave radiation and their photocatalytic behaviour. The TiO nanostructured arrays were synthesized on seeded polyethylene naphthalate PEN substrates with different solvents water, ª propanol, ethanol and methanol. TiO thin films deposited by spin-coating were used as seed layer for the nanostructures growth. Structural characterization of the microwave synthesized materials has been carried out by scanning electron microscopy SEM and X-Ray diffraction XRD . The optical properties have also been investigated. The TiO nanostructures arrays were tested as photocatalytic agents in the degradation of pollutant dyes like methylene blue M" in the presence of UV radiation. Expressive differences between the different solvents were detected, in which methanol demonstrated higher M" degradation for the conditions tested.

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“…Thermochromism refers to the phase transition behavior of a material that can cause differences in optical performance under external temperature changes to achieve discoloration [111,112]. Different from electrochromism, thermochromism is self-regulating and does not require the consumption of additional energy.…”

Section: Thermochromic Pcsmentioning

confidence: 99%

Review: smart windows based on photonic crystals

Feng

Yang

et al. 2020

J Mater Sci

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Smart windows control indoor solar radiation by regulating the transmittance of light, which is a promising way to reduce building energy consumption. The advent of photonic crystals (PCs) has accelerated the industrialization of smart windows. The combination of static and dynamic regulation can be realized based on the photon control function of photonic band gaps, which is expected to achieve the ideal effect of light transmission and heat control. This paper reviews recent advances of electrochromic and thermochromic smart windows based on PCs. Firstly, theory, materials, performance and development of electrochromic and thermochromic smart windows based on PCs are briefly outlined. Typical structures of electrochromic and thermochromic PCs are introduced in detail, from preparation process, morphology characterization and performance analysis, which provides directions for the future development and construction of smart windows based on PCs. Finally, challenges and opportunities facing next-generation smart windows are summarized.

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Smart optically active VO2 nanostructured layers applied in roof-type ceramic tiles for energy efficiency

Cited by 54 publications

References 42 publications

Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Photocatalytic Activity of TiO2 Nanostructured Arrays Prepared by Microwave-Assisted Solvothermal Method

Review: smart windows based on photonic crystals

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Smart optically active VO2 nanostructured layers applied in roof-type ceramic tiles for energy efficiency

Cited by 54 publications

References 42 publications

Hydrothermal Synthesis of VO2 Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Hydrothermal Synthesis of VO2 Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Photocatalytic Activity of TiO2 Nanostructured Arrays Prepared by Microwave-Assisted Solvothermal Method

Review: smart windows based on photonic crystals

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Product

Resources

About

Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows