Design, fabrication and characterization of TiO 2 -SiO 2 multilayer with tailored color glazing for thermal solar collectors

Pană, Iulian; Vițelaru, Cătălin; Kiss, A.; Zoita, C.N.; Dinu, Mihaela; Braic, M.

doi:10.1016/j.matdes.2017.05.063

Cited by 24 publications

(8 citation statements)

References 46 publications

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“…It should be stressed that titanium dioxide is one of the richest compounds on our planet, and a very appealing material for a variety of applications [26,27,28,29,30,31]. In fact, TiO 2 has been applied in: ultraviolet photodetectors, organic lights emitting diodes, organic solar cells, and photocatalytic water-splitting technology.…”

Section: Introductionmentioning

confidence: 99%

Influence of TiO2 Nanoparticles on Liquid Crystalline, Structural and Electrochemical Properties of (8Z)-N-(4-((Z)-(4-pentylphenylimino)methyl)benzylidene)-4-pentylbenzenamine

et al. 2019

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Organic–inorganic hybrids based on liquid crystalline symmetrical imine (8Z)-N-(4-((Z)-(4-pentylphenylimino)methyl)benzylidene)-4-pentylbenzenamine (AZJ1) with two aliphatic chains and TiO2 nanomaterials were obtained and investigated taking into account thr crystallographic form of titanium dioxide i.e. anatase versus rutile. The type of TiO2 influences the mesomorphic properties of imine AZJ1, as observed by differential scanning calorimetry (DSC) and polarizing optical microscopy (POM) techniques. Fourier-Transform Infrared Spectroscopy (FT-IR) was used to investigate the interactions of oxygen vacancies located on the TiO2 surface with the studied AZJ1 imine together with studying the influence of temperature. Both imine:TiO2 anatase versus rutile hybrids possessed the highest occupied molecular orbital (HOMO) levels of about −5.39 eV (AZJ1:anatase) and −5.33 eV (AZJ1:rutile) and the lowest unoccupied molecular orbital (LUMO) levels of about −2.24 eV. The presence of TiO2 in each hybrid did not strongly affect the redox properties of imine AZJ1. Organic devices with the configuration of ITO/TiO2/AZJ1 (or AZJ1:TiO2 anatase versus rutile)/Au were fabricated and investigated in the presence and absence of visible light irradiation with a light intensity of 93 mW/cm2. Finally, to analyze defects in the constructed organic devices we used thermal imaging and atomic force microscopy (AFM). The addition of TiO2 in both crystallographic forms has a positive influence on layer-forming properties that manifests itself as a very homogenous heat distribution for the whole sample.

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Section: Introductionmentioning

confidence: 99%

Influence of TiO2 Nanoparticles on Liquid Crystalline, Structural and Electrochemical Properties of (8Z)-N-(4-((Z)-(4-pentylphenylimino)methyl)benzylidene)-4-pentylbenzenamine

et al. 2019

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“…An increase in annealing temperature leads to a rougher coating structure, which probably results in an increase in light scattering intensity, hence causing a decrease in transparency. 46 These results demonstrate that the SiO 2 /TiO 2 lm is dense and mechanically robust. The enhancement in the hardness and elastic modulus with an increase in pyrolytic temperature is correlated with the denser structure of the coating obtained at higher temperatures.…”

Section: Optical Mechanical and Hydrophilic Properties Of Ptsz Basedmentioning

confidence: 76%

Dense, uniform, smooth SiO₂/TiO₂hard coatings derived from a single precursor source of tetra-n-butyl titanate modified perhydropolysilazane

et al. 2018

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“…This configuration employs 3 targets located at equal distance from substrate holder position, in such a way that uniform deposition on a 9 cm diameter of the substrate is obtained. Each of the materials can be deposited individually, resulting in multilayer structures [ 27 , 28 ], or simultaneously-depositing 2 or 3 materials—resulting in a mixed uniform composition [ 29 ].…”

Section: Methodsmentioning

confidence: 99%

Synthesis and Investigation of Antibacterial Activity of Thin Films Based on TiO2-Ag and SiO2-Ag with Potential Applications in Medical Environment

et al. 2022

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Multiple antibiotic resistance has now become a major obstacle to the treatment of infectious diseases. In this context, the application of nanotechnology in medicine is a promising alternative for the prevention of infections with multidrug-resistant germs. The use of silver as a powerful antibacterial agent has attracted much interest. TiO2 and SiO2 thin films enhanced with Ag particles have been developed with the aim of maintaining the transparency of the polymer films. Antibacterial activity was evaluated for a Gram-negative species-Escherichia coli-in concentrations of 105 and 104 CFU/mL in different conditions-activation by UV irradiation, single layer and double layer. Increased antibacterial efficacy of TiO2-deposited foil was found for the tests that had been exposed to UV activation. In the case of bilayer tests, the efficiency was higher compared to those in a single layer, as the contact surface between the films and the bacterial suspension increased. Films can be used as a potential method to limit bacterial growth on hospital surfaces, such as telephone screens and medical equipment, given their optimized characteristics and proven antibacterial efficacy.

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Design, fabrication and characterization of TiO 2 -SiO 2 multilayer with tailored color glazing for thermal solar collectors

Cited by 24 publications

References 46 publications

Influence of TiO2 Nanoparticles on Liquid Crystalline, Structural and Electrochemical Properties of (8Z)-N-(4-((Z)-(4-pentylphenylimino)methyl)benzylidene)-4-pentylbenzenamine

Influence of TiO2 Nanoparticles on Liquid Crystalline, Structural and Electrochemical Properties of (8Z)-N-(4-((Z)-(4-pentylphenylimino)methyl)benzylidene)-4-pentylbenzenamine

Dense, uniform, smooth SiO₂/TiO₂hard coatings derived from a single precursor source of tetra-n-butyl titanate modified perhydropolysilazane

Synthesis and Investigation of Antibacterial Activity of Thin Films Based on TiO2-Ag and SiO2-Ag with Potential Applications in Medical Environment

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Design, fabrication and characterization of TiO 2 -SiO 2 multilayer with tailored color glazing for thermal solar collectors

Cited by 24 publications

References 46 publications

Influence of TiO2 Nanoparticles on Liquid Crystalline, Structural and Electrochemical Properties of (8Z)-N-(4-((Z)-(4-pentylphenylimino)methyl)benzylidene)-4-pentylbenzenamine

Influence of TiO2 Nanoparticles on Liquid Crystalline, Structural and Electrochemical Properties of (8Z)-N-(4-((Z)-(4-pentylphenylimino)methyl)benzylidene)-4-pentylbenzenamine

Dense, uniform, smooth SiO2/TiO2hard coatings derived from a single precursor source of tetra-n-butyl titanate modified perhydropolysilazane

Synthesis and Investigation of Antibacterial Activity of Thin Films Based on TiO2-Ag and SiO2-Ag with Potential Applications in Medical Environment

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Product

Resources

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Dense, uniform, smooth SiO₂/TiO₂hard coatings derived from a single precursor source of tetra-n-butyl titanate modified perhydropolysilazane