Detection of zinc blende phase by the pulsed laser photoacoustic technique in ZnO thin films deposited via pulsed laser deposition

Rosales, Aldebarán; Castañeda-Guzmán, R.; Ita, A. de; Sánchez-Aké, C.; Pérez‐Ruiz, Santiago J.

doi:10.1016/j.mssp.2015.02.017

Cited by 9 publications

(3 citation statements)

References 46 publications

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“…It is pertinent to note the existence of a noticeable lack of both theoretical and empirical results pertaining to the ternary and quaternary alloys under consideration, with the exception of theoretical data pertaining to the ternary alloy Mg 0.5 Zn 0.5 O [34]. In contrast, our findings of binary compounds ZnO, BeO, and MgO exhibit a noteworthy agreement with the results of previous theoretical and experimental investigations documented in the scientific literature [33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48].…”

Section: Structural Propertiessupporting

confidence: 87%

An in-depth look at the structural, electronic, optical, and thermal properties of the cubic Be_xMg_yZn_1−x−yO quaternary alloys

Seksak,

Moussa,

Boudjelal

et al. 2024

Phys. Scr.

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In the present research work, the structural, electrical, optical, and thermodynamic properties of the BexMgyZn1−x-yO quaternary alloy were investigated. Its conventional structure, which is composed of the binary compounds ZnO, BeO, and MgO, and their ordered ternary alloys BexZn1−xO, BexMg1−xO, and MgxZn1−xO. A non-linear variation of lattice constants (a) and bulk modulus (B) as a function of the compositions (x, y) in BexMgyZn1−x-yO alloys is observed due to varying atomic radii of the constituent elements leading to the structural distortion against compositional changes. Both the ternary and quaternary alloys exhibit semiconducting properties, characterized by a direct bandgap ranging from 2-4 eV. This indicates their absorption and emission of light in the visible region of the spectrum, making them promising candidates for optoelectronic applications. The results of optical characteristics display the variation of refractive index and absorption coefficient of these alloys with respect to composition and wavelength. Present results will forecast the possible applications and guidelines for synthesizing such alloys under extreme conditions.

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Section: Structural Propertiessupporting

confidence: 87%

An in-depth look at the structural, electronic, optical, and thermal properties of the cubic Be_xMg_yZn_1−x−yO quaternary alloys

Seksak,

Moussa,

Boudjelal

et al. 2024

Phys. Scr.

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“…[1][2][3][4] ZnO film can be obtained by many film growth methods such as magnetron sputtering, solution based method, atomic layer deposition (ALD), chemical vapor deposition (CVD), pulse laser deposition (PLD) and molecular beam epitaxy (MBE). [5][6][7][8][9][10] Among these methods, ALD is highlighted for the precise control of film growth at the atomic layer scale and hence high-quality film can be obtained. However, conventional thermal ALD suffers from low growth rate due to the periodic longtime purge steps for temporally separating the precursors to ensure the surface-limiting reaction, which makes it less attractive for industrial manufacturing.…”

mentioning

confidence: 99%

Variation of Oxygen Vacancy Defects in sALD-ZnO Films Annealed in an Oxygen-Rich Ambient

Zhao

Sun

et al. 2021

ECS J. Solid State Sci. Technol.

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Oxygen vacancy defects play an important role in determining the properties of zinc oxide (ZnO) film. In this study, ZnO film prepared by a high-deposition-rate spatial ALD process was annealed in an oxygen-rich ambient. The variation of oxygen vacancy defects was analyzed. The results show that oxygen vacancy defects were suppressed by the annealing treatment, particularly at 500 °C–700 °C. As a result, the carrier concentration decreases with increasing annealing temperature, leading to the higher film resistivity. In addition, the oxygen atoms segregated to the ZnO/Si interface to form an interfacial oxide layer, leading to an oxygen-deficient ZnO film when annealed at 300 °C–400 °C and the decrease of oxygen atomic ratio when annealed at 500 °C–800 °C. The annealing treatment also induces higher crystallinity with larger crystallite size, leading to a higher mobility. The refractive index increases with annealing temperature at 300 °C–700 °C, possibly due to the structural relaxation, densification and crystallization of the film. However, the annealing treatment has little effect on the film transmittance due to the low optical loss.

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“…The attractive characteristics of PLD in the synthesis of multicomponent thin-film materials make it the perfect technique for a lot of applications [23,24]. In some cases, it could be the synthesis of a thin-film material or structure [25].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of a Cell Electrostimulator Using Pulse Laser Deposition and Laser Selective Thin Film Removal

Beloso¹,

Varela²,

Rodríguez³

et al. 2017

Laser Ablation - From Fundamentals to Applications

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In this work, we present a laser-based process for fabricating a cell electrostimulator. The fabrication methodology comprises two laser processes: a pulse laser deposition (PLD) of an aluminum thin film on soda-lime glass and a laser-based selectively removal of the thin film. The laser set-up for PLD consist of Nd:YVO 4 Rofin Power line 20E (1064 nm wavelength, 20 ns pulse width) focused by a lens of 160 mm focal length inside a vacuum chamber to strike a target of the deposited material. The same laser is used for selectively removing the thin film but focused by a lens of 100 mm focal length. The geometry design is made in CAD-like software. Before microfabrication, a thin aluminum layer (1 μm thickness) is deposited on soda-lime glass using the PLD method. In order to assemble the device, the electrical stimulator is placed between two polycarbonate sheets of 1.5 mm thickness. To prevent any contact with the electric circuit, a thin silicate glass (100 μm) is placed over the electrostimulator. Simulations were performed using ANSYS Maxwell software, verifying that the induced electrical field achieves the minimum for cell stimulation.

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Detection of zinc blende phase by the pulsed laser photoacoustic technique in ZnO thin films deposited via pulsed laser deposition

Cited by 9 publications

References 46 publications

An in-depth look at the structural, electronic, optical, and thermal properties of the cubic Be_xMg_yZn_1−x−yO quaternary alloys

An in-depth look at the structural, electronic, optical, and thermal properties of the cubic Be_xMg_yZn_1−x−yO quaternary alloys

Variation of Oxygen Vacancy Defects in sALD-ZnO Films Annealed in an Oxygen-Rich Ambient

Fabrication of a Cell Electrostimulator Using Pulse Laser Deposition and Laser Selective Thin Film Removal

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Detection of zinc blende phase by the pulsed laser photoacoustic technique in ZnO thin films deposited via pulsed laser deposition

Cited by 9 publications

References 46 publications

An in-depth look at the structural, electronic, optical, and thermal properties of the cubic Be x Mg y Zn1−x−y O quaternary alloys

An in-depth look at the structural, electronic, optical, and thermal properties of the cubic Be x Mg y Zn1−x−y O quaternary alloys

Variation of Oxygen Vacancy Defects in sALD-ZnO Films Annealed in an Oxygen-Rich Ambient

Fabrication of a Cell Electrostimulator Using Pulse Laser Deposition and Laser Selective Thin Film Removal

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Product

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An in-depth look at the structural, electronic, optical, and thermal properties of the cubic Be_xMg_yZn_1−x−yO quaternary alloys

An in-depth look at the structural, electronic, optical, and thermal properties of the cubic Be_xMg_yZn_1−x−yO quaternary alloys