Thin Film Deposition Techniques

Grosso, David; Boissière, Cédric; Faustini, Marco

doi:10.1002/9783527670819.ch09

Cited by 14 publications

(10 citation statements)

References 85 publications

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“…The steps of making thin films using the above techniques are either standardized or as per the requirements; some modifications are done to achieve good quality films. Standard methods can be referred from various handbooks of thin film preparation [34][35][36]. The surface of thin film should be very active for gas sensing.…”

Section: Techniques Used For Thin Film Fabricationsmentioning

confidence: 99%

Environmental Gas Sensors Based on Nanostructured Thin Films

Sureshkumar¹,

Dutta²

2020

Multilayer Thin Films - Versatile Applications for Materials Engineering

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Since the discovery of electron microscopes, nanomaterials and nanotechnology have been influencing academic and industrial research greatly for bringing out newer and better products with improved materials' properties. In the field of environmental gas sensors too, the demonstration of nanomaterials for sensing various gases has become a common practice. Environmental gas pollution has turned out to be a huge concern in the society due to the progress of civilization. The awareness of health hazard for different toxic/polluting gases and rectification measure by imposing stricter norms has prompted extensive research to develop efficient gas sensors to detect trace level of pollution from various sources. Thin film, ultrathin film, and nanostructure materials of metal oxide semiconductor, polymer, metal, carbon nanotube, graphene, etc. with or without sensitizers have been investigated for sensing various toxic gases. New device structures have been fabricated to achieve high sensitivity, selectivity, fast response, etc. The microstructure and thickness of film are found to influence the performance greatly. Various methods of preparations and mechanism of sensing are being explored. All these aspects and the challenges were discussed in this chapter.

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Section: Techniques Used For Thin Film Fabricationsmentioning

confidence: 99%

Environmental Gas Sensors Based on Nanostructured Thin Films

Sureshkumar¹,

Dutta²

2020

Multilayer Thin Films - Versatile Applications for Materials Engineering

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“…This step becomes dominating when the sol is applied. Among the different deposition techniques, spin-and dip-coating [5][6][7][8] are the most studied ones. Despite their differences, the basic mechanisms of condensation and evaporation of the wet film remain the same.…”

Section: Introductionmentioning

confidence: 99%

“…The large exchange surface created with the atmosphere induces a rapid equilibrium of the volatile species between the layer and the atmosphere. Therefore, at this time, evaporation is the main cause of the evolution of the composition of the film, though it can trigger or be accompanied by other effects such as water absorption or viscous flow [7]. Evaporation is also accompanied by the solidification of the film by subunits crosslinking favored by spatial gathering.…”

Section: Introductionmentioning

confidence: 99%

Influence of relative humidity and temperature on the sol-gel transition of a siloxane surface treatment

Hatte

Dubos

Guitter³

et al. 2019

J Sol-Gel Sci Technol

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This work investigates the effect of relative humidity (RH) and temperature on drying phenomenon of a siloxane coating during the sol-gel process. An experimental approach was taken, due to a lack of available data in existing literature. Dynamic Vapor Sorption, Fourier Transform Infra-Red spectroscopy and X-ray Photoelectron Spectroscopy analyses were performed during sol drying, while controlling RH and temperature. The drying time increased exponentially when RH was increased. This was linked to water uptake and evaporation rate decrease, forming a more condensed coating. The thermally activated process was fitted by the Arrhenius law with an activation energy of 41.7 kJ mol −1 . A double exponential law was proposed to describe the time needed for drying the sol as a function of temperature and RH. Finally, differences in the gel formed were clearly demonstrated. Between a RH of 30 and 50%, the gel formation turned from a dry-before-gel to a gelbefore-dry phenomenon, stressing the importance of temperature and RH control during the drying process of the sol.

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“…All in all, only the second and the third approaches, in which the nanocomposites mixtures are present in the liquid phase, are compatible with low cost methods such as spray, spin-coating, dip-coating and printing [31], often used for the deposition of thin films on large surface areas [32].…”

Section: Introductionmentioning

confidence: 99%

A new approach for synthesizing plasmonic polymer nanocomposite thin films by combining a gold salt aerosol and an atmospheric pressure low-temperature plasma

et al. 2021

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The proof of the concept of a new, one step and safe by design process to synthetize metalpolymer nanocomposites thin films on a large surface is presented. It is based on the injection of an aerosol of a solution of metal (gold) salts dissolved in a polymerisable solvent (isopropanol) into an argon atmospheric pressure dielectric barrier discharge (DBD). The main novelty of this method resides in the fact that the nanoparticles are formed in situ, inside the plasma reactor, in the gas phase. Consequently, the nanoparticle synthesis and deposition is concomitant with the solvent polymerization used to produce the matrix, which makes it -2 -possible to obtain homogeneous layers of non-agglomerated nanoparticles (NPs) with high NPs density. By toggling between low and high frequency discharges, gold/polymer nanocomposites with different morphologies and optical properties are synthesized. The effect of the concentration of gold in the aerosol and the gas residence time in the plasma as well as the ratio of high and low frequency discharge and their repetition rate are presented. The thin films are systematically characterized by AFM and UV-Visible spectroscopy to analyze their morphologies along with their plasmonic resonances.

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Thin Film Deposition Techniques

Cited by 14 publications

References 85 publications

Environmental Gas Sensors Based on Nanostructured Thin Films

Environmental Gas Sensors Based on Nanostructured Thin Films

Influence of relative humidity and temperature on the sol-gel transition of a siloxane surface treatment

A new approach for synthesizing plasmonic polymer nanocomposite thin films by combining a gold salt aerosol and an atmospheric pressure low-temperature plasma

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