Ni/FTO bilayer thin films with high photoelectric properties optimized by magnetic-field-assisted laser annealing

Huang, Liyong; Ren, Naifei; Zhou, Ming

doi:10.1016/j.matlet.2014.11.018

Cited by 10 publications

(3 citation statements)

References 15 publications

(18 reference statements)

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“…Furthermore, laser cutting in ethanol–water mixtures results in a better cut quality than laser cuts performed in pure water, but leads to a lower cutting efficiency . A magnetic field with specific orientations (e.g., vertical and parallel) applied during laser irradiation can change the surface morphology, microstructure, and grain size of MOs due to the magnetic force induced on the ferromagnetic elements . A preheating process can be used to reduce thermal stress induced during laser heating and the light intensity requirement for appropriate interactions .…”

Section: Laser–materials Interactionsmentioning

confidence: 99%

Laser Irradiation of Metal Oxide Films and Nanostructures: Applications and Advances

et al. 2018

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Recent technological advances in developing a diverse range of lasers have opened new avenues in material processing. Laser processing of materials involves their exposure to rapid and localized energy, which creates conditions of electronic and thermodynamic nonequilibrium. The laser-induced heat can be localized in space and time, enabling excellent control over the manipulation of materials. Metal oxides are of significant interest for applications ranging from microelectronics to medicine. Numerous studies have investigated the synthesis, manipulation, and patterning of metal oxide films and nanostructures. Besides providing a brief overview on the principles governing the laser-material interactions, here, the ongoing efforts in laser irradiation of metal oxide films and nanostructures for a variety of applications are reviewed. Latest advances in laser-assisted processing of metal oxides are summarized.

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Section: Laser–materials Interactionsmentioning

confidence: 99%

Laser Irradiation of Metal Oxide Films and Nanostructures: Applications and Advances

et al. 2018

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“…2 show the diffraction peaks for the He-Ne laser irradiated Sn0.04Co0.06normalO2 thin films (22 mW) with different exposure times of 0, 1, 2, 15, 40, and 60 min. It was found that the crystal structure and growth orientation of Sn0.04Co0.06normalO2 film are not affected by laser irradiation 45 . A comparison of the sharpness of diffraction peaks of the unirradiated and irradiated Sn0.04Co0.06normalO2 films indicates that the intensity of the most intensive (110) peak considerably increases, which confirms the laser radiation in the general influence that resulted in an effective reduction in crystal defect and improvement in film crystallinity 46 .…”

Section: Resultsmentioning

confidence: 71%

“…It was found that the crystal structure and growth orientation of Sn 0.04 Co 0.06 O 2 film are not affected by laser irradiation. 45 A comparison of the sharpness of diffraction peaks of the unirradiated and irradiated Sn 0.04 Co 0.06 O 2 films indicates that the intensity of the most intensive (110) peak considerably increases, which confirms the laser radiation in the general influence that resulted in an effective reduction in crystal defect and improvement in film crystallinity. 46 In general, as the laser energy density increases, the effect will become more and more prominent, thereby promoting the crystallization of the film, but extremely elevated laser irradiation will definitely lead to excessive energy per unit area, causing ablation or damage, thereby interfering with the film crystallization.…”

Section: Microstructural Analysismentioning

confidence: 78%

Laser radiation effect on microstructural, linear, and nonlinear optical characteristics of Sn0.04Co0.06O2 nanostructured films

Gad

2022

Opt. Eng.

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. The influence of He-Ne laser radiation on linear and nonlinear optical characteristics of Co-doped SnO2 (Sn0.04Co0.06O2) thin film was studied before and after irradiation. 22 mW (633 nm) He-Ne laser beam was employed to irradiate the film with different exposure times (Texpo. = 1, 2, 5, 15, 20, 40, and 60 min). As grown and irradiated films were examined by X-ray diffraction (XRD), an atomic force microscope (AFM) was integrated with UV-VIS–NIR spectrophotometer. XRD pattern analysis showed that the crystallite size decreased as the exposure increased to 5 min, however, a further increase in Texpo from 15 to 60 min increased the crystallite size. Analysis of AFM micrographs shows that the roughness of the surface and root mean square roughness of the film depend on the increase in the laser exposure time. The optical studies of irradiated films show that the optical energy gap Eg decreases as the exposure time increases to 5 min and then raises as the film is irradiated for up to 60 min. This reduction was attributed to the elimination of the additional oxygen from the film, and the increase of Eg is explained by the Burstein–Moss effect. Swanepoel’s envelope method is used to calculate the linear optical parameters of the irradiated film from the light transmission spectrum, such as refractive index n, and extinction coefficient k. The results reveal that the global behavior of n and k increases with exposure time. The oscillator parameters of the irradiated film of different exposure times were evaluated from the single-oscillator Wemple–DiDomenico model, which was then used to calculate the nonlinear optical parameters such as n2 the nonlinear refractive index, and χ(3) the third-order nonlinear optical susceptibility. It is concluded that the He-Ne laser irradiation with different exposure times enhances the optoelectronic properties of Sn0.04Co0.06O2 nanocrystalline semiconductor thin film

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Performance optimization of SnO2:F thin films under quasi-vacuum laser annealing with covering a transparent PET sheet: A study using processing map

Ren

Yang

Huang

et al. 2020

Applied Surface Science

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Ni/FTO bilayer thin films with high photoelectric properties optimized by magnetic-field-assisted laser annealing

Cited by 10 publications

References 15 publications

Laser Irradiation of Metal Oxide Films and Nanostructures: Applications and Advances

Laser Irradiation of Metal Oxide Films and Nanostructures: Applications and Advances

Laser radiation effect on microstructural, linear, and nonlinear optical characteristics of Sn0.04Co0.06O2 nanostructured films

Performance optimization of SnO2:F thin films under quasi-vacuum laser annealing with covering a transparent PET sheet: A study using processing map

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