Thickness distribution of carbon nitride films grown by inverse-pulsed laser deposition

Égerházi, L.; Geretovszky, Zsolt; Szörényi, T.

doi:10.1016/j.apsusc.2005.01.041

Cited by 23 publications

(7 citation statements)

References 20 publications

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“…Monte Carlo simulations of Morozov proved that up to 20 % of atoms could be back reflected depending on the background pressure [28]. Égerházi et al also demonstrated that this backward scattering of the ablated fragments has practical application possibility for example in thin-layer deposition (inverse PLD) [29]. Depending on the quantity of the clusters and nanoparticles deposited on the surface, a diffusionlimited aggregation can start forming a cluster-assembled coral-like structure, as shown by Rode et al when ablating glassy carbon with a high repetition rate femtosecond laser [23].…”

Section: Discussionmentioning

confidence: 99%

Production of nanostructures on bulk metal samples by laser ablation for fabrication of low-reflective surfaces

et al. 2013

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Nanostructure formation on bulk noble metals (copper, gold and silver) by a femtosecond laser was studied aiming at the production of low-reflectivity surfaces. The target surface was irradiated with the beam of a 775 nm wavelength and 150 fs pulse duration Ti:sapphire laser. The fluence was in the 16-2000 mJ/cm 2 range, while the average pulse number was varied between 10 and 1000 depending on the scanning speed of the sample stage. The reflectivity of the treated surfaces was measured with a visible-nearinfrared microspectrometer in the 450-800 nm range, while the morphology was studied with a scanning electron microscope. A strong correlation was found between the decreasing reflectivity and the nanostructure formation on the irradiated surface; however, the morphology of silver significantly differed from those of copper and gold. For the two latter metals a dense coral-like structure was found probably as a result of cluster condensation in the ablation plume followed by diffusion-limited aggregation. In the case of silver the surface was covered by nanodroplets, which formation was probably influenced by the 'spitting' caused by ambient oxygen absorption in the molten silver followed by its fast release during the resolidification.

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Section: Discussionmentioning

confidence: 99%

Production of nanostructures on bulk metal samples by laser ablation for fabrication of low-reflective surfaces

et al. 2013

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“…Other arrangements (shape of targets, positioning of substrates) are possible. For example, the substrate can be placed elsewhere with respect to the plume, and can be positioned such as to have its surface parallel to the direction of the plume propagation rather than perpendicular [25] or even in the plane of the target [26]. Other arrangements are discussed in earlier reviews (for example [5]).…”

Section: Development Of Pldmentioning

confidence: 99%

Recent advances in pulsed-laser deposition of complex oxides

Christen

Eres

2008

J. Phys.: Condens. Matter

251

174

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Pulsed-laser deposition (PLD) is one of the most promising techniques for the formation of complex-oxide heterostructures, superlattices, and well controlled interfaces. The first part of this paper presents a review of several useful modifications of the process, including methods inspired by combinatorial approaches. We then discuss detailed growth kinetics results, which illustrate that 'true' layer-by-layer (LBL) growth can only be approached, not fully met, even though many characterization techniques reveal interfaces with unexpected sharpness. Time-resolved surface x-ray diffraction measurements show that crystallization and the majority of interlayer mass transport occur on timescales that are comparable to those of the plume/substrate interaction, providing direct experimental evidence that a growth regime exists in which non-thermal processes dominate PLD. This understanding shows how kinetic growth manipulation can bring PLD closer to ideal LBL than any other growth method available today.

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“…Therefore we have a common central part and some difference around the edges. For qualitative comparison with experimental data [23], it is convenient to present the very same profiles in dimensional units (figure 1(a)). Such a representation allows us to reveal nonobvious features of the backward deposition.…”

Section: Numerical Resultsmentioning

confidence: 99%

“…Since the primary aim of this study is to be a first approach to model IPLD experiments [23], the main set of parameters was taken from real experimental conditions. The mass ratio of M = 0.43 corresponds to carbon as target material and nitrogen as background gas.…”

Section: Formulation Of the Problemmentioning

confidence: 99%

“…The mass ratio of M = 0.43 corresponds to carbon as target material and nitrogen as background gas. For laser fluence we used 7 J cm −2 [23]. When assuming room temperature background gas (T 0 = 300 K) and roughly estimating the surface temperature during ablation as T 1 = 8000 K [24], it corresponds to the temperature ratio of T 1 /T 0 = 26.7.…”

Section: Formulation Of the Problemmentioning

confidence: 99%

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Test particle Monte Carlo study of backward deposition during evaporation into a background gas

Morozov

Geretovszky

Szörényi

2007

J. Phys. D: Appl. Phys.

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A study on backward flow of laser ablated material during low-intensity evaporation into a background gas using the test particle Monte Carlo method is reported. Thickness profiles of the material deposited in the target plane are obtained for different evaporated particle masses and background gas pressures. The crossing of thickness profiles experimentally observed for different pressures is confirmed. Optimum background gas pressures, which yield the largest backward deposition rate, are determined for different mass ratios of the evaporated and background gas species.

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Thickness distribution of carbon nitride films grown by inverse-pulsed laser deposition

Cited by 23 publications

References 20 publications

Production of nanostructures on bulk metal samples by laser ablation for fabrication of low-reflective surfaces

Production of nanostructures on bulk metal samples by laser ablation for fabrication of low-reflective surfaces

Recent advances in pulsed-laser deposition of complex oxides

Test particle Monte Carlo study of backward deposition during evaporation into a background gas

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