Scattering Phenomena in Porous Sol-Gel-Derived Silica Films

Jaglarz, Janusz; Dulian, Piotr; Karasiński, Paweł; Winkowski, P.

doi:10.3390/coatings10060509

Cited by 9 publications

(5 citation statements)

References 31 publications

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“…First, the real part of the effective refractive index (neff) of the propagating mode was calculated for different geometric parameters of the WG core. As shown in the previous section, in our lab, we can deposit a smooth, thin layer of SiO2:TiO2 on glass with the help of the sol-gel dip-coating method [6,19]. Furthermore, the WG film thickness can be precisely adjusted with the properly selected withdrawal speed of the substrate from sol.…”

Section: Effective Refractive Index Analysismentioning

confidence: 99%

Mode Sensitivity Exploration of Silica–Titania Waveguide for Refractive Index Sensing Applications

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Kaźmierczak

Tyszkiewicz

et al. 2021

Sensors

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In this paper, a novel and cost-effective photonic platform based on silica–titania material is discussed. The silica–titania thin films were grown utilizing the sol–gel dip-coating method and characterized with the help of the prism-insertion technique. Afterwards, the mode sensitivity analysis of the silica–titania ridge waveguide is investigated via the finite element method. Silica–titania waveguide systems are highly attractive due to their ease of development, low fabrication cost, low propagation losses and operation in both visible and near-infrared wavelength ranges. Finally, a ring resonator (RR) sensor device was modelled for refractive index sensing applications, offering a sensitivity of 230 nm/RIU, a figure of merit (FOM) of 418.2 RIU−1, and Q-factor of 2247.5 at the improved geometric parameters. We believe that the abovementioned integrated photonics platform is highly suitable for high-performance and economically reasonable optical sensing devices.

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Section: Effective Refractive Index Analysismentioning

confidence: 99%

Mode Sensitivity Exploration of Silica–Titania Waveguide for Refractive Index Sensing Applications

Butt

Kaźmierczak

Tyszkiewicz

et al. 2021

Sensors

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“…One of the easiest and most common methods for producing thin films from a wide range of inorganic, hybrid, and nanocomposite materials is the sol-gel method [24][25][26].…”

Section: Dip-coatingmentioning

confidence: 99%

Thin-Film Coating Methods: A Successful Marriage of High-Quality and Cost-Effectiveness—A Brief Exploration

Butt

2022

Coatings

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In this review, several cost-effective thin-film coating methods, which include dip-coating, spin-coating, spray-coating, blade-coating, and roll-coating, are presented. Each method has its own set of advantages and disadvantages depending on the proposed application. Not all of them are appropriate for large-scale production due to their certain limitations. That is why the coating method should be selected based on the type and size of the substrate, including the thickness and surface roughness of the required thin films. The sol–gel method offers several benefits, such as simplicity in fabrication, excellent film uniformity, the capacity to cover surfaces of any size and over vast areas, and a low processing temperature. Nevertheless, these coating methods are somewhat economical and well managed in low-budget laboratories. Moreover, these methods offer thin films with good homogeneity and low-surface roughness. Furthermore, some other thin-film deposition methods, for instance, physical vapor deposition (PVD) and chemical vapor deposition (CVD), are also discussed. Since CVD is not restricted to line-of-sight deposition, a characteristic shared by sputtering, evaporation, and other PVD methods, many manufacturing methods favor it. However, these techniques require sophisticated equipment and cleanroom facilities. We aim to provide the pros and cons of thin-film coating methods and let the readers decide the suitable coating technique for their specific application.

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“…One of the easiest and most common methods for producing thin films from a wide range of inorganic, hybrid, and nanocomposite materials is the sol-gel method [21,22,23]. Considering that it provides for coating a broad range of substrates and complicated geometries, including substrates with holes or intricate patterns, it provides for a high degree of control over the crucial parameters and offers flexibility that cannot be achieved with other traditional processes.…”

Section: Dip-coatingmentioning

confidence: 99%

Thin-Film Coating Methods: A Successful Marriage of High-Quality and Cost-Effectiveness- A Brief Exploration

Butt¹

2022

Preprint

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In this review, several cost-effective thin-film coating methods which include dip-coating, spin-coating, spray-coating, blade-coating, and roll-coating are presented. Each method has its set of advantages and disadvantages depending on the type of application. Not all of them are appropriate for large-scale production due to their certain limitations. That is why the coating method should be selected based on the type and size of substrate including the resolution of the required thin-films. The sol-gel method offers several benefits, such as simplicity in fabrication, excellent film uniformity, the capacity to cover surfaces of any size and over vast areas, and a low processing temperature. Nevertheless, these coating methods are somewhat economical and well managed in low-budget laboratories. Moreover, the produced thin-films are homogeneous and have low-surface roughness. Furthermore, some other thin-film deposition methods such as physical vapor deposition (PVD) and chemical vapor deposition (CVD) are also discussed. Since CVD is not restricted to line-of-sight deposition, a characteristic shared by sputtering, evaporation, and other PVD processes, many manufacturing methods favor it. However, these techniques require sophisticated equipment and cleanroom facility. We aim to provide the pros and cons of thin-film coating methods and let the readers decide the suitable technique for their specific application.

show abstract

Scattering Phenomena in Porous Sol-Gel-Derived Silica Films

Cited by 9 publications

References 31 publications

Mode Sensitivity Exploration of Silica–Titania Waveguide for Refractive Index Sensing Applications

Mode Sensitivity Exploration of Silica–Titania Waveguide for Refractive Index Sensing Applications

Thin-Film Coating Methods: A Successful Marriage of High-Quality and Cost-Effectiveness—A Brief Exploration

Thin-Film Coating Methods: A Successful Marriage of High-Quality and Cost-Effectiveness- A Brief Exploration

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