Preparation of high transmittance TiO<sub>2</sub> thin films by sol-gel technique as antireflection coating

Shinen, Mohammed Hadi; AlSaati, S A A; Razooqi, Fouad Z.

doi:10.1088/1742-6596/1032/1/012018

Cited by 10 publications

(7 citation statements)

References 12 publications

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“…We confirmed that the average transmittance increased because the MXene-layer-induced TiO 2 exhibited high transmittance . Therefore, the good electrical properties and excellent hydrophilicity of the MXene deteriorated.…”

Section: Resultssupporting

confidence: 52%

“…We confirmed that the average transmittance increased because the MXene-layer-induced TiO 2 exhibited high transmittance. 53 Therefore, the good electrical properties and excellent hydrophilicity of the MXene deteriorated. Unlike the ΔR values of the bare-AgNW and MA-composite electrodes, those of the PTFE-passivated MA-composite electrode only increased 0.4 times, and the average PTFEpassivated MA-composite transmittance only increased from 51.46% to 59.80%.…”

Section: Acs Applied Electronic Materialsmentioning

confidence: 99%

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Conformal Passivation of Self-Cleanable, Flexible, and Transparent Polytetrafluoroethylene Thin Films on Two-Dimensional MXene and Three-Dimensional Ag Nanowire Composite Electrodes

Kim

Kang

Choi

et al. 2023

ACS Appl. Electron. Mater.

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Despite the excellent performance of MXene−Ag nanowire (MA) composite transparent conductive electrodes (TCEs), they rapidly and severely degrade in ambient and humid environments. To address this critical issue, we developed conformal polytetrafluoroethylene (PTFE) passivation thin films prepared using magnetron sputtering at room temperature. Compared to the PTFE passivated electrode, the nonpassivated bare MA-composite electrode exhibited a considerably increased sheet resistance, and the electrode flexibility and electromagnetic interference (EMI) shielding efficiency (SE) degraded rapidly over time because the moisture and impurities severely oxidized the MXene layer in the harsh testing environment. However, the MA-composite electrode with PTFE passivation shows constant sheet resistance, transmittance, flexibility, and EMI SE, even after the 85 °C−85% relative humidity (RH) test. Compared to the nonpassivated MA-electrode-based thin film heaters (TFHs), the PTFE-passivated MA-composite electrode-based TFHs exhibited improved stability and reliability, indicating that the sputtered PTFE film effectively prevented the moisture and impurity penetration of the MA-composite electrodes.

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Section: Resultssupporting

confidence: 52%

Section: Acs Applied Electronic Materialsmentioning

confidence: 99%

Conformal Passivation of Self-Cleanable, Flexible, and Transparent Polytetrafluoroethylene Thin Films on Two-Dimensional MXene and Three-Dimensional Ag Nanowire Composite Electrodes

Kim

Kang

Choi

et al. 2023

ACS Appl. Electron. Mater.

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“…This led to increased absorbance and selfcleaning activities. 143 Work to improve photochromism and self-cleaning of VO 2 by combining it with other materials is already promising. 144 Challenges facing the application of VO 2 as self-cleaning thin films and possible remedies…”

Section: Thermochromic Property Of Vo 2 and Self-cleaningmentioning

confidence: 99%

Fabrication of vanadium dioxide thin films and application of its thermochromic and photochromic nature in self-cleaning: A review

Lukong

Ukoba

Jen

2022

Energy & Environment

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Vanadium dioxide (VO2) and many binary compounds of vanadium can transform from a semiconducting state to a metallic state under the influence of temperature or light. The transformation is triggered by modifications in the oxide's crystalline structure, often initiated by changes in its light-sensing and electrical attributes. This ability makes them suitable for smart coatings, electronic switches, self-cleaning surfaces, window glass, and many more. These potential applications have prompted tremendous interest in VO2thin films, focusing on their fabrication and application. This article reviews current fabrication methods for VO2thin films, the potential application of their thermochromic and photochromic properties in self-cleaning coatings, the challenges facing their application, and some remedies devised to address the challenges. The various challenges facing its different synthesis and fabrication methods are also highlighted. First, the different transitional phases of VO2and routes to transform from one stage to the other are presented.

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“…The reflectance (R) of the deposited films was calculated using the law of conservation of radiant energy relating to absorbance, transmittance and reflectance as shown in equation (3) according to [22][23][24].…”

Section: Nanoarchitectonicsmentioning

confidence: 99%

Influence of Annealing Temperature on the Properties of SILAR Deposited CdSe/ZnSe Superlattice Thin Films for Optoelectronic Applications

et al. 2022

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In this work, superlattice thin films of CdSe/ZnSe were fabricated on a non-conductive glass substrate using the successive ionic layer adsorption reaction (SILAR) method to investigate their properties for possible optoelectronic applications. The SILAR process involved a total cycle time of 100 seconds for a complete SILAR cycle with a total of 12 cycles made by depositing alternative layers of CdSe and ZnSe. The deposited thin films were annealed at different temperatures and characterized to determine their optical, elemental, morphological and structural properties using UV-VIS spectroscopy, Scanning electron microscope (SEM)/energy dispersive x-ray spectroscope (EDS) and x-ray diffraction techniques (XRD). The results of the characterizations revealed that optical properties of the films such as absorbance, reflectance, refractive index and extinction coefficient are low but increased as the annealing temperature increases. The bandgap energy was found to decrease from 2.50 eV-1.90 eV for as-deposited film and those annealed between 373 K and 523 K. film thickness was found to range from 130.169 nm to 254.441 nm. The EDS results showed that the target elements such as Cd, Zn, Se and other elements traceable to the nature of substrate used were found to be present in the deposited thin film samples. The results of the XRD showed that the thin films are polycrystalline and the diffraction peaks are influenced by annealing of the sample at a higher temperature such as 523 K. The crystal parameters such as crystallite size, dislocation density and micro-strain of the film at 523 K were found to be 5.546 nm, 3.25 × 1016 l/m2 and 1.13 × 10-2. The SEM results showed that the CdSe/ZnSe superlattice films were composed of tiny nanoparticles of different dimensions and sizes with hollow which increased as the annealing temperature increased from 432 K to 523 K. Possible applications of the deposited superlattice thin films in solar cells and optoelectronic devices were established by virtue of their bandgap energy and other properties.

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Preparation of high transmittance TiO₂ thin films by sol-gel technique as antireflection coating

Cited by 10 publications

References 12 publications

Conformal Passivation of Self-Cleanable, Flexible, and Transparent Polytetrafluoroethylene Thin Films on Two-Dimensional MXene and Three-Dimensional Ag Nanowire Composite Electrodes

Conformal Passivation of Self-Cleanable, Flexible, and Transparent Polytetrafluoroethylene Thin Films on Two-Dimensional MXene and Three-Dimensional Ag Nanowire Composite Electrodes

Fabrication of vanadium dioxide thin films and application of its thermochromic and photochromic nature in self-cleaning: A review

Influence of Annealing Temperature on the Properties of SILAR Deposited CdSe/ZnSe Superlattice Thin Films for Optoelectronic Applications

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Preparation of high transmittance TiO2 thin films by sol-gel technique as antireflection coating

Cited by 10 publications

References 12 publications

Conformal Passivation of Self-Cleanable, Flexible, and Transparent Polytetrafluoroethylene Thin Films on Two-Dimensional MXene and Three-Dimensional Ag Nanowire Composite Electrodes

Conformal Passivation of Self-Cleanable, Flexible, and Transparent Polytetrafluoroethylene Thin Films on Two-Dimensional MXene and Three-Dimensional Ag Nanowire Composite Electrodes

Fabrication of vanadium dioxide thin films and application of its thermochromic and photochromic nature in self-cleaning: A review

Influence of Annealing Temperature on the Properties of SILAR Deposited CdSe/ZnSe Superlattice Thin Films for Optoelectronic Applications

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Preparation of high transmittance TiO₂ thin films by sol-gel technique as antireflection coating