Basic deposition methods of thin films**

Janarthanan, B.; Thirunavukkarasu, C.; Maruthamuthu, S.; Manthrammel, M. Aslam; Shkir, Mohd.; AlFaify, S.; Selvakumar, M.; Reddy, Vasudeva Reddy Minnam; Park, Chinho

doi:10.1016/j.molstruc.2021.130606

Cited by 11 publications

(4 citation statements)

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“…41 The semiconductor industry has developed different methods for thin film depositions (e.g., chemical vapor deposition, sputtering, thermal evaporation, atomic layer deposition, sol−gel, chemical bath deposition, and Doctor Blade). 42 Among the physical and chemical methods of thin film deposition, the Doctor Blade process is inexpensive and technically suitable one (e.g., temperature and pressure requirements). 43 The Doctor Blade technique deposits thicker films by increasing deposition speed affecting final morphological properties of the coatings.…”

Section: Resultsmentioning

confidence: 99%

Adsorption and Photocatalytic Degradation of Methylene Blue on TiO₂ Thin Films Impregnated with Anderson-Evans Al-Polyoxometalates: Experimental and DFT Study

et al. 2023

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In this work, we fabricated a TiO2 thin film, and the same film was modified with an Anderson aluminum polyoxometalate (TiO2-AlPOM). Physical–chemical characterization of the catalysts showed a significant change in morphological and optical properties of the TiO2 thin films after surface modification. We applied the kinetic and isothermal models to the methylene blue (MB) adsorption process on both catalysts. The pseudo-second order model was the best fitting model for the kinetic results; qe (mg/g) was 11.9 for TiO2 thin films and 14.6 for TiO2-AlPOM thin films, and k 2 (g mg–1 min–1) was 16.3 × 10–2 for TiO2 thin films and 28.2 × 10–2 for TiO2-AlPOM thin films. Furthermore, the Freundlich model was suitable to describe the isothermal behavior of TiO2, K F (5.42 mg/g), and 1/n (0.312). The kinetics of photocatalytic degradation was fitted using the Langmuir–Hinshelwood model; k ap was 7 × 10–4 min–1 for TiO2 and 13 × 10–4 min–1 for TiO2-AlPOM. The comparative study showed that TiO2 thin films reach a 19.6% MB degradation under UV irradiation and 9.1% MB adsorption, while the TiO2-AlPOM thin films reach a 32.6% MB degradation and 12.2% MB adsorption on their surface. The surface modification improves the morphological, optical, and photocatalytic properties of the thin films. Finally, the DFT study supports all the previously shown results.

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Section: Resultsmentioning

confidence: 99%

Adsorption and Photocatalytic Degradation of Methylene Blue on TiO₂ Thin Films Impregnated with Anderson-Evans Al-Polyoxometalates: Experimental and DFT Study

et al. 2023

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“…However, this technique is not widespread in the semiconductor industry due to the amount of precursor solution initially required in the reservoir [ 59 ]. Generally, the dip-coating process of film formation implies several technical stages [ 74 ]: Immersion: the substrate is slowly dipped in the material precursor solution at a uniform speed. Pull-up: the substrate is kept inside the solution for a fixed short duration, and then slowly pulled up.…”

Section: Synthesis Of P-type Mox Thin Filmsmentioning

confidence: 99%

P-Type Metal Oxide Semiconductor Thin Films: Synthesis and Chemical Sensor Applications

Moumen

Kumarage

Comini

2022

Sensors

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This review focuses on the synthesis of p-type metal-oxide (p-type MOX) semiconductor thin films, such as CuO, NiO, Co3O4, and Cr2O3, used for chemical-sensing applications. P-type MOX thin films exhibit several advantages over n-type MOX, including a higher catalytic effect, low humidity dependence, and improved recovery speed. However, the sensing performance of CuO, NiO, Co3O4, and Cr2O3 thin films is strongly related to the intrinsic physicochemical properties of the material and the thickness of these MOX thin films. The latter is heavily dependent on synthesis techniques. Many techniques used for growing p-MOX thin films are reviewed herein. Physical vapor-deposition techniques (PVD), such as magnetron sputtering, thermal evaporation, thermal oxidation, and molecular-beam epitaxial (MBE) growth were investigated, along with chemical vapor deposition (CVD). Liquid-phase routes, including sol–gel-assisted dip-and-spin coating, spray pyrolysis, and electrodeposition, are also discussed. A review of each technique, as well as factors that affect the physicochemical properties of p-type MOX thin films, such as morphology, crystallinity, defects, and grain size, is presented. The sensing mechanism describing the surface reaction of gases with MOX is also discussed. The sensing characteristics of CuO, NiO, Co3O4, and Cr2O3 thin films, including their response, sensor kinetics, stability, selectivity, and repeatability are reviewed. Different chemical compounds, including reducing gases (such as volatile organic compounds (VOCs), H2, and NH3) and oxidizing gases, such as CO2, NO2, and O3, were analyzed. Bulk doping, surface decoration, and heterostructures are some of the strategies for improving the sensing capabilities of the suggested pristine p-type MOX thin films. Future trends to overcome the challenges of p-type MOX thin-film chemical sensors are also presented.

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“…Thin film deposition techniques have been applied in numerous fields, like electronics, coatings, packaging, or photovoltaic cells, using different methods such as sol-gel, hydrothermal synthesis, electrochemical methods, spray coating, spin coating, physical/chemical vapor deposition, laser-based techniques, or evaporation [ 14 , 15 , 16 , 17 , 18 , 19 , 20 ]. Most of these methods are predominantly related to the deposition of inorganic compounds as thin layers on different surfaces, being less applicable for generating organic substrates.…”

Section: Introductionmentioning

confidence: 99%

Surface Modification Using MAPLE Technique for Improving the Mechanical Performance of Adhesive Joints

et al. 2023

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The adhesive bonds that ensure the appropriate mechanical properties for metal joining imply the surface chemical and wetting modification characteristics of the substrates. In this work, matrix-assisted pulsed laser evaporation (MAPLE) was used for the surface modification of Al via the deposition of two chemical compounds, polyvinyl alcohol (PVA) and triethanolamine (TEA), from frozen aqueous solutions. The deposition of the TEA and PVA layers was evidenced by FT-IR, SEM, and AFM analysis. The contact angle measurements evidenced the change in the hydrophilicity of the surface and surface free energies. The performance of the commercial silyl-based polymer adhesive Bison Max Repair Extreme Adhesive® was evaluated by tensile strength measurements. This method led to a change in tensile strength of 54.22% in the case of Al-TEA and 36.34% for Al-PVA compared with the control. This study gives preliminary insights into using MAPLE, for the first time in adhesive applications, as a pretreatment method for Al plates for adhesive bonding reinforcement.

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Basic deposition methods of thin films**

Cited by 11 publications

References 100 publications

Adsorption and Photocatalytic Degradation of Methylene Blue on TiO₂ Thin Films Impregnated with Anderson-Evans Al-Polyoxometalates: Experimental and DFT Study

Adsorption and Photocatalytic Degradation of Methylene Blue on TiO₂ Thin Films Impregnated with Anderson-Evans Al-Polyoxometalates: Experimental and DFT Study

P-Type Metal Oxide Semiconductor Thin Films: Synthesis and Chemical Sensor Applications

Surface Modification Using MAPLE Technique for Improving the Mechanical Performance of Adhesive Joints

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Basic deposition methods of thin films**

Cited by 11 publications

References 100 publications

Adsorption and Photocatalytic Degradation of Methylene Blue on TiO2 Thin Films Impregnated with Anderson-Evans Al-Polyoxometalates: Experimental and DFT Study

Adsorption and Photocatalytic Degradation of Methylene Blue on TiO2 Thin Films Impregnated with Anderson-Evans Al-Polyoxometalates: Experimental and DFT Study

P-Type Metal Oxide Semiconductor Thin Films: Synthesis and Chemical Sensor Applications

Surface Modification Using MAPLE Technique for Improving the Mechanical Performance of Adhesive Joints

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Product

Resources

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Adsorption and Photocatalytic Degradation of Methylene Blue on TiO₂ Thin Films Impregnated with Anderson-Evans Al-Polyoxometalates: Experimental and DFT Study

Adsorption and Photocatalytic Degradation of Methylene Blue on TiO₂ Thin Films Impregnated with Anderson-Evans Al-Polyoxometalates: Experimental and DFT Study