Structural, Morphological, Vibrational and Optical Properties of GaN Films Grown by Reactive Sputtering: The Effect of RF Power at Low Working Pressure Limit

Oliveira, Ricardo Santos; Folli, H. A.; Stegemann, C.; Horta, I. M.; Damasceno, B. S.; Miyakawa, Walter; Pereira, Aledir Silveira; Massi, M.; Sobrinho, Argemiro Soares da Silva; Leite, Douglas Marcel Gonçalves

doi:10.1590/1980-5373-mr-2021-0432

Cited by 3 publications

(2 citation statements)

References 39 publications

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“…Superior properties like this can be used for obtaining advanced devices. The deposition of AZO can be performed using the sol-gel dip and spin coating, chemical vapor deposition, magnetron sputtering, spray pyrolysis technique, etc., with various doping elements [23][24][25][26]. As a result of its band energy being more than 3.37 eV, zinc oxide (ZnO) may be utilised in a wide variety of commercial products, including pigments, paints, rubber, glass, metals, and batteries [27][28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

The Impact of Temperature and Power Variation on the Optical, Wettability, and Anti-Icing Characteristics of AZO Coatings

Chauhan,

Rawal,

Patel

et al. 2024

Crystals

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The structural, wettability, and optical characteristics of aluminum-doped zinc oxide (AZO) thin films were studied with the objective of understanding the impact of deposition power and deposition temperature. Thin films were deposited using a radio frequency (RF) magnetron sputtering technique. The power output of the RF was augmented from 200 to 260 W, and the temperature was increased from 50 to 200 °C, which led to the development of a (002) peak for zinc oxide. The study of film thickness was carried out using the Swanepoel envelope method from data obtained through the UV-Vis spectrum. An increase in surface roughness value was shown to be connected with fluctuations in temperature as well as increases in deposition power. The findings revealed that as deposition power and temperature increased, the value of optical transmittance decreased, ranging from 70% to 90% based on the deposition parameters within the range of wavelengths that extend from 300 to 800 nm. The wettability properties of the samples were studied, and the maximum contact angle achieved was 110°. A Peltier apparatus was utilised in order to investigate the anti-icing capabilities, which revealed that the icing process was slowed down 3.38-fold. This work extends the understanding of the hydrophobicity and anti-icing capabilities of AZO thin films, specifically increasing both attributes which provide feasible options for purposes requiring resistance to ice.

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Section: Introductionmentioning

confidence: 99%

The Impact of Temperature and Power Variation on the Optical, Wettability, and Anti-Icing Characteristics of AZO Coatings

Chauhan,

Rawal,

Patel

et al. 2024

Crystals

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“…Due to economic values and high demand given by a broad range of applications of coating technologies, there has been a significant effort and energy put into the design and study of functional thin films and technologies 12 . Magnetron sputtering 13 , sol-gel spin coating 14 , atomic layer deposition 15 , chemical vapor deposition 16 , solgel dip coating 17 , and pulsed laser deposition 18 are just a few of the techniques that can be employed to develop coatings.…”

Section: Introductionmentioning

confidence: 99%

Effects of Argon Partial Pressure Variations on Wettability and Anti-icing Characteristics of Aluminum Doped ZnO Thin Films

Patel¹,

Chauhan²

2023

Mat. Res.

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When ice forms on solid surfaces, it can cause issues in many different sectors (aircraft, electricity lines, etc.). Surfaces and coatings with hydrophobic qualities may be used in anti-icing applications. The purpose of this work is to utilize RF Magneton Sputtering to deposit AZO thin coatings, which will slow the accumulation of ice on the surface. The effects of changes in argon partial pressure on the anti-icing, wettability, optical, and structural properties of the resulting thin films have been experimentally investigated. X-ray diffraction demonstrated a (002) peak of ZnO, the intensity of the peak diminishes with an increase in partial pressure. The band gap was measured to be between 2.98 and 3.15 eV, and the average maximum transmittance was observed to be around 82% for 50% partial pressure and 71% for 33% partial pressure, confirming the transparency of the thin films. Wettability studies revealed that the films are hydrophobic with a maximum contact angle of 127.5°, which was deposited at lower partial pressure. Films deposited at 33% partial pressure delayed the formation of ice on the surface by 4.5 folds when compared to an uncoated substrate.

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Enhancing sputtered GaN/Si film quality by adding AlGaN buffer layer in a continuous deposition process

Horta,

Pereira,

Neto

et al. 2024

Surfaces and Interfaces

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Structural, Morphological, Vibrational and Optical Properties of GaN Films Grown by Reactive Sputtering: The Effect of RF Power at Low Working Pressure Limit

Cited by 3 publications

References 39 publications

The Impact of Temperature and Power Variation on the Optical, Wettability, and Anti-Icing Characteristics of AZO Coatings

The Impact of Temperature and Power Variation on the Optical, Wettability, and Anti-Icing Characteristics of AZO Coatings

Effects of Argon Partial Pressure Variations on Wettability and Anti-icing Characteristics of Aluminum Doped ZnO Thin Films

Enhancing sputtered GaN/Si film quality by adding AlGaN buffer layer in a continuous deposition process

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