Recent advancements in multifunctional applications of sol-gel derived polymer incorporated TiO2-ZrO2 composite coatings: A comprehensive review

Simon, Sanu Mathew; George, Gejo; Sajna, M.S.; Prakashan, V.P.; Jose, Twinkle Anna; Vasudevan, Prathibha; Saritha, A; Biju, P.R.; Joseph, Cyriac; Unnikrishnan, N.V.

doi:10.1016/j.apsadv.2021.100173

Cited by 20 publications

(7 citation statements)

References 201 publications

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“…The sol-gel chemistry begins with mixing the precursor (acetate, nitrate, or chloride) with the solvent. If water is the solvent, the sol-gel is hydrolytic but named nonhydrolytic sol-gel in the case of using an organic solvent such as ethanol [6]. The solution prepared by the sol-gel chemistry is used cooperatively with coating techniques such as spray, dip, and spin coating.…”

Section: Sol-gel Chemistrymentioning

confidence: 99%

“…Controlling the conditions of preparation, nanoparticles of controlled shape/morphology, control stoichiometry, size, textural, surface characteristics, purity, and high quality can be obtained. Besides, uncomplicated ideas can be executed via this technique for more recent and advanced technological applications [6]. In the following section, some examples of the sol-gel derived nanostructures will be mentioned with their characterization and some related applications.…”

Section: Figurementioning

confidence: 99%

See 1 more Smart Citation

Synthesis of Some Functional Oxides and Their Composites Using Sol-Gel Method

Hassen¹,

Sayed²,

Al‐Ghamdi³

et al. 2023

Sol-Gel Method - Recent Advances

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Two main approaches for nanomaterials fabrication are the top-down and the bottom-up methods. The first is limited to mechanical grinding, thermal evaporation, ion sputtering, arc discharge, pulsed laser ablation, and other physical and chemical vapor deposition. These routes are costly, consume higher energy, and require complex technology such as ultrahigh vacuum. The bottom-up methods refer to the production of complex nanostructured materials from atoms and molecules. This approach is relatively simple and low in cost. However, it requires a good knowledge of the optical properties of the particles and their modifications when the particles are integrated with nanostructures. One of the widest bottom-up methods is the sol–gel. It involves a solution or sol (single-phase liquid) that undergoes a sol–gel transition (stable suspension of colloidal particles). In this chapter, we throw light on the history of sol–gel, its advantages, and limitations, operating this method for the production of different types of nanomaterials in the form of powders or thin films. In addition, some applications of the sol–gel-derived nanosized materials will be discussed.

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Section: Sol-gel Chemistrymentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Synthesis of Some Functional Oxides and Their Composites Using Sol-Gel Method

Hassen¹,

Sayed²,

Al‐Ghamdi³

et al. 2023

Sol-Gel Method - Recent Advances

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show abstract

“…Both undoped and doped forms of TiO 2 have been prepared by diverse techniques including sol–gel, hydrothermal, chemical vapor deposition, atomic layer deposition, solvothermal, ion exchange reactions, and coprecipitation . Among these methods, sol–gela wet chemical techniqueincludes simple steps and has the advantages of molecular composition homogeneity, easy controllability, particle size accuracy, reproducibility, and low preparation temperature favorable in the photocatalyst synthesis . TiO 2 prepared by the sol–gel method has been demonstrated to be an effective photoinduced catalyst, which is governed by particle size, phase structure, and light irradiation types …”

Section: Introductionmentioning

confidence: 99%

Research upon Cu-Doping Contents in TiO₂ Nanoparticles Incorporated onto Cellulose Nanofibers for Dye Removal and Self-Cleaning Applications

Phan,

Tran,

Nguyen

et al. 2024

ACS Omega

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Cu-doping contents in the TiO2 lattice structure were studied to show the effects on the crystal structure, morphology, and photocatalytic activity of TiO2 nanoparticles and thus composite cellulosic nanofibrous membranes. Pristine and copper-doped TiO2 nanoparticles were synthesized using the sol–gel technique, a wet chemical method with the advantages of low synthesizing temperature, uniform nanosize distribution, and purity. The as-synthesized semiconductor nanoparticles were first tested with the dye removal process and then impregnated onto electrospun cellulose nanofibers (CL nanofibers) to acquire modified nanofibers with self-cleaning properties. The as-prepared composite CL nanofibers consisting of doped and undoped TiO2 nanoparticles were characterized by various techniques, such as field emission scanning electron microscopy, transmission electron microscopy, UV–vis, X-ray diffraction, Fourier transform infrared spectroscopy, and tensile tests. The copper-doped TiO2 molar ratio in the nanocomposite was found to possess a pronounced impact on the dye removal and self-cleaning effects under the visible light spectrum, whereas TiO2 is highly effective under specific UV-light irradiation. Optical measurements and dye decomposition showed that the Cu-doped TiO2 nanocomposite was optimized at a 1% molar ratio by the copper-doping concentration regarding dye removal and self-cleaning applications under the visible light range.

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“…Compared to sophisticated low-temperature techniques, high-temperature annealing (>300 • C) can easily and effectively accelerate thermal decomposition and condensation reactions of precursors, resulting in the formation of dense, pinhole-free dielectric films. Numerous studies have been conducted to enhance the quality of oxide dielectric films by adjusting the annealing temperature, duration, pH value and catalyst [22][23][24]. Nonetheless, several typical circumstances, such as cracks and crystallization of oxide films, occur frequently during the high-temperature annealing process, resulting in the generation of tremendous quantities of internal defects, high residual stress, roughness, and poor density.…”

Section: Introductionmentioning

confidence: 99%

Efficient gradient heating-up approach for rapid growth of high-quality amorphous ZrO₂ dielectric films

Chen,

Liang,

Liao

et al. 2024

J. Phys. D: Appl. Phys.

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High-k oxide dielectric films are indispensable for low-power-consumption oxide thin-film transistors (TFTs) applied in advanced and portable electronics. However, high-quality oxide dielectric films prepared by solution process typically require sophisticated processes and long thermal annealing time, severely limiting both the throughput manufacturing and cost-effectiveness. In this study, the influence of different heating-up methods on the surface morphology and dielectric properties was systematically investigated. Gradient heating-up method could not only substantially improve the surface morphology and quality of high-k ZrO2 films but also efficiently shorten the annealing time. The gradient heating-up process was further designed on the basis of thermal behavior of the xerogel-like precursor, which successfully realize the preparation of high-quality ZrO2 films with an annealing time of 5 min (i.e. the efficiency of thermal treatment increased by about 89%). The ZrO 2 film presented excellent dielectric properties, including a low leakage current density of ~10−8 A/cm2 (at 2 MV/cm), a large areal capacitance of 169 nF/cm2 and a high dielectric constant of 20.41 (1 MHz). Furthermore, InSnZnO TFT based on the ZrO2 gate dielectrics shows an acceptable device performances, such as a high carrier mobility of 2.82 cm2/V s, a high on/off current ratio of ~105 and a low subthreshold swing of 0.19 V/decade at a low operation voltage of 5 V. This work provide a highly promising approach to fabricate high-quality solution-processed high-k oxide dielectric films employed for large-scale and low-power-consumption electronics.

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Recent advancements in multifunctional applications of sol-gel derived polymer incorporated TiO2-ZrO2 composite coatings: A comprehensive review

Cited by 20 publications

References 201 publications

Synthesis of Some Functional Oxides and Their Composites Using Sol-Gel Method

Synthesis of Some Functional Oxides and Their Composites Using Sol-Gel Method

Research upon Cu-Doping Contents in TiO₂ Nanoparticles Incorporated onto Cellulose Nanofibers for Dye Removal and Self-Cleaning Applications

Efficient gradient heating-up approach for rapid growth of high-quality amorphous ZrO₂ dielectric films

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Recent advancements in multifunctional applications of sol-gel derived polymer incorporated TiO2-ZrO2 composite coatings: A comprehensive review

Cited by 20 publications

References 201 publications

Synthesis of Some Functional Oxides and Their Composites Using Sol-Gel Method

Synthesis of Some Functional Oxides and Their Composites Using Sol-Gel Method

Research upon Cu-Doping Contents in TiO2 Nanoparticles Incorporated onto Cellulose Nanofibers for Dye Removal and Self-Cleaning Applications

Efficient gradient heating-up approach for rapid growth of high-quality amorphous ZrO2 dielectric films

Contact Info

Product

Resources

About

Research upon Cu-Doping Contents in TiO₂ Nanoparticles Incorporated onto Cellulose Nanofibers for Dye Removal and Self-Cleaning Applications

Efficient gradient heating-up approach for rapid growth of high-quality amorphous ZrO₂ dielectric films