Hybrid organic/inorganic nanolaminate structures with enhanced tribo-mechanical properties for optical applications

Poirié, Thomas; Schmitt, Thomas; Bousser, Étienne; Vernhes, Richard; Martinů, L.; Klemberg-Sapieha, Jolanta E.

doi:10.1016/j.surfcoat.2017.02.056

Cited by 11 publications

(3 citation statements)

References 39 publications

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“…Compared with the mentioned methods, the sol-gel process is the most used method to produce the hybrid silica coatings because: (a) it allows the control of the product's chemical composition; (b) it is attractive for coating polymers that have melting points between 150 and 300 • C; (c) uniform coatings can easily be fabricated by dipping or spin coating; (d) is low cost and a cost-effectiveness technique and (e) ceramic, glass, metal and polymer substrates can be easily coated [7]. Sol-gel route is considered an adequate method to produce smart and green coatings that can be suited to applications in optoelectronics, self-cleaning solar cells, photovoltaics and sensors [8,9]. Chen et al [10] fabricated the multifunctional coating with superhydrophilic, high transparency, antireflective and self-cleaning properties via a chemical vapor deposition method.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Some Sol-Gel Modified Silica Coatings Deposited on Polyvinyl Chloride (PVC) Substrates

Purcar

Rădiţoiu

et al. 2020

Coatings

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Transparent and antireflective coatings were prepared by deposition of modified silica materials onto polyvinyl chloride (PVC) substrates. These materials were obtained by the sol-gel route in acidic medium, at room temperature (25 °C), using different alkoxysilanes with various functional groups (methyl, vinyl, octyl or hexadecyl). Physicochemical and microstructural properties of resulted silica materials and of thin coatings were investigated through Fourier Transforms Infrared Spectroscopy (FTIR), UV-Vis spectroscopy, Thermal Gravimetric Analysis (TGA), Dynamic Mechanical Analysis (DMA), Atomic Force Microscopy (AFM) and ellipsometric measurements. Wetting behaviors of the silica coatings were evaluated by measurement of static contact angle against water. FTIR spectra of materials confirmed the high degree of cross-linking that result from the formation of the inorganic backbone through the hydrolysis and polycondensation reactions together with the formation of the organic network. These sol-gel silica coatings showed a reduction in the reflectance (10%) compared with uncoated PVC substrate. AFM reveals that the films are uniform, and adherent to the substrate, but their morphology is strongly influenced by the chemical composition of the coating matrices. These silica coatings can be useful for potential electronic and optical devices.

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Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Some Sol-Gel Modified Silica Coatings Deposited on Polyvinyl Chloride (PVC) Substrates

Purcar

Rădiţoiu

et al. 2020

Coatings

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“…Inorganic-organic materials are prepared as bulks, fibres, powders, and films [2]. Inorganic-organic films have the applications as antireflective films [5,6], anticorrosive films on metal and glass [7][8][9][10], hydrophobic, oleophobic and self-cleaning films on glass [6,[11][12][13][14][15], protective films on historical buildings [16], antibacterial films [17,18], and optical films which combine high transparency and high flexibility [19]. They are also used in microelectronics [20].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Treatment Temperature on Surface Properties of Inorganic-Organic Films

Papučová¹

2021

Ceramics - Silikaty

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The paper deals with the treatment temperature influence of inorganic-organic films on their surface properties. Inorganic-organic films were prepared by sol-gel method in "tetraethoxysilane -triethoxy(octyl)silane -water -nitric acid -isopropyl alcohol" system, and they were treated at temperatures of 140, 160, 180, 200 and 220 °C. The atomic force microscopy and sessile drop technique were used for characterization of film surface. The morphology, rms-roughness, and surface wettability (hydrophobicity) were evaluated. Surface free energy and its polar and dispersion component were calculated by Owens-Wendt-Rabel-Kaelble (OWRK) method, using contact angles of water and diiodomethane. On the basis of results of all studied properties, the films can be divided into two groups. The first group is represented by films prepared at temperatures of 140, 160 and 180 °C because there is the evaporation of present solvents. The second group is represented by films prepared at temperatures of 200 and 220 °C because the degradation processes of inorganic-organic components are in progress in films.

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“…Sol-gel silica antireflective coatings (ARCs) have captured a considerable amount of attention in the past few decades, since they exhibit outstanding properties, such as superior homogeneity, controllable structure, adjustable refractive index, and have a wide variety of potential applications in solar panels, light sensors, and high-powered laser fusion systems [1][2][3][4][5][6]. However, sol-gel silica ARCs are usually porous and polar and apt to absorb contamination from the working environment [7].…”

Section: Introductionmentioning

confidence: 99%

Surface Modification of Sol-Gel Silica Antireflective Coatings by F-PMHS: A Simple Method for Improvement of Amphiphobicity

et al. 2018

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Sol-gel silica antireflective coatings (ARCs) with improved amphiphobicity were simply fabricated on BK7 glass substrates via fluorinated-poly(methylhydrogen)siloxane (F-PMHS) surface modification by the dip-coating method. The results of Fourier Transform Infrared (FTIR) and X-ray Photoelectron Spectroscopy (XPS) showed that F-PMHS were covalently bonded to the surface of ARCs. F-PMHS modification significantly improved hydrophobicity and oleophobicity of silica ARCs by increasing their water contact angles from 27 • to 105 • and oil contact angles from 17 • to 45 • . In addition to the improved amphiphobicity, the modified ARCs also possessed excellent transmittance. Most importantly, it was found that with increasing F-PMHS content the atom amounts and porous property of modified ARCs were almost unchanged. This result had been shown to be associated with the changes of optical property and amphiphobicity for silica ARCs, and the details were discussed.

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Hybrid organic/inorganic nanolaminate structures with enhanced tribo-mechanical properties for optical applications

Cited by 11 publications

References 39 publications

Preparation and Characterization of Some Sol-Gel Modified Silica Coatings Deposited on Polyvinyl Chloride (PVC) Substrates

Preparation and Characterization of Some Sol-Gel Modified Silica Coatings Deposited on Polyvinyl Chloride (PVC) Substrates

The Influence of Treatment Temperature on Surface Properties of Inorganic-Organic Films

Surface Modification of Sol-Gel Silica Antireflective Coatings by F-PMHS: A Simple Method for Improvement of Amphiphobicity

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