Laser induced non-thermal deposition of ultrathin graphite

Reininghaus, Martin; Wortmann, Daniel; Finger, Johannes; Faley, O.; Poprawe, R.; Stampfer, Christoph

doi:10.1063/1.3703599

Cited by 17 publications

(8 citation statements)

References 19 publications

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“…Eq.3) for the different ablative damage spot radii r and laser pulse energies E (figure 1c) provides the ablation thresholds for the SWCNT and highly oriented pyrolytic graphite (HOPG) samples, where the HOPG one was used as a well-known reference sample. The measured thresholds for SWCNT and graphite were 50 and 360 mJ/cm 2 , respectively, with the latter threshold in a good agreement with the previously reported values[20][21][22]. However in the study by Chae et al the SWCNT were not damaged by nanosecond pulse with fluence 590 mJ/cm 2 that is one order larger compared to our results.…”

supporting

confidence: 93%

Single-shot and single-spot measurement of laser ablation threshold for carbon nanotubes

Lednev¹,

Першин²,

Obraztsova³

et al. 2013

J. Phys. D: Appl. Phys.

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A simple and convenient procedure for single-shot, single-spot ablation threshold measurement has been developed. It is based on the employment of cylindrical lens to obtain elliptical Gaussian laser spot. The ablated spot chords which are parallel to the minor axis were measured across the spot major axis which is proportional to the fluence cross-section thus providing wide range dependence of damaged spot size versus fluence in one spot measurement. For both conventional and new-developed procedures the ablation threshold for typical Nd:YAG laser parameters (1064 nm, 10 ns) has been measured as 50±5 mJ/cm 2 which is one order of magnitude lower than that for a bulk graphite. keywords: laser ablation, carbon nanotubes, laser ablation threshold PACS: 79.20.Eb Laser ablation; 78.20.-e Optical properties of bulk materials and thin films. A threshold for a laser-induced ablative material removal is a key governing parameter for a number of applications, such as a laser sampling for chemical analysis, a pulsed laser deposition of thin films, a new material synthesis, a coatings patterning, a laser machining and a laser systems development. Currently, several methods are used for evaluation of such laser ablation threshold: the ablative damage spot measurements [1-3] a detection of drastic ablative plasma emission appearance [4], a Langmuir probe and a mass-spectrometry detection of charged species yield [5].

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supporting

confidence: 93%

Single-shot and single-spot measurement of laser ablation threshold for carbon nanotubes

Lednev¹,

Першин²,

Obraztsova³

et al. 2013

J. Phys. D: Appl. Phys.

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“…For N > 7 the ablation threshold saturates. 616 Laser ablation is still in its infancy 616,617 and needs further development. The process is best implemented in inert or vacuum conditions, 618,619 since ablation in air tends to oxidize the graphene layers.…”

Section: Productionmentioning

confidence: 99%

Science and technology roadmap for graphene, related two-dimensional crystals, and hybrid systems

et al. 2015

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We present the science and technology roadmap for graphene, related two-dimensional crystals, and hybrid systems, targeting an evolution in technology, that might lead to impacts and benefits reaching into most areas of society. This roadmap was developed within the framework of the European Graphene Flagship and outlines the main targets and research areas as best understood at the start of this ambitious project. We provide an overview of the key aspects of graphene and related materials (GRMs), ranging from fundamental research challenges to a variety of applications in a large number of sectors, highlighting the steps necessary to take GRMs from a state of raw potential to a point where they might revolutionize multiple industries. We also define an extensive list of acronyms in an effort to standardize the nomenclature in this emerging field.

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“…Laser ablation is still in its infancy 53,54 , and needs further development. The process is best implemented in inert or vacuum conditions 55,56 since ablation in air tends to oxidize the graphene layers 53 .…”

Section: Laser Ablation and Photoexfoliationmentioning

confidence: 99%