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Search for "spatial distribution" in Full Text gives 107 result(s) in Beilstein Journal of Nanotechnology.

A review on slip boundary conditions at the nanoscale: recent development and applications

  • Ruifei Wang,
  • Jin Chai,
  • Bobo Luo,
  • Xiong Liu,
  • Jianting Zhang,
  • Min Wu,
  • Mingdan Wei and
  • Zhuanyue Ma

Beilstein J. Nanotechnol. 2021, 12, 1237–1251, doi:10.3762/bjnano.12.91

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  • liquid water can still slip even when the attraction between water and the solid wall is strong [67][68]. Besides the solid–water interaction energy, water slippage is also determined by the spatial distribution of water molecules within the contact layer on solid surfaces [68][69]. Under the condition
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Published 17 Nov 2021

Irradiation-driven molecular dynamics simulation of the FEBID process for Pt(PF3)4

  • Alexey Prosvetov,
  • Alexey V. Verkhovtsev,
  • Gennady Sushko and
  • Andrey V. Solov’yov

Beilstein J. Nanotechnol. 2021, 12, 1151–1172, doi:10.3762/bjnano.12.86

Graphical Abstract
  • evaluated by means of analytical models [41]. The obtained spatial and energetic distributions of PE, SE, and BSE are tabulated. The spatial distribution of electrons is defined on a cubic grid covering the whole simulation box; the grid consists of voxels with the size of 1 nm. The energy distribution of
  • , discussed further in the text. Figure 3B shows a spatial distribution of the fragmentation probability of Pt(PF3)4 per PE, calculated using the electron distributions and the Pt(PF3)4 fragmentation cross section. Fragmentation cross section An overview of the electron interactions with precursor molecules
  • steady-state concentration. Similarly to the creation of the initial precursor layer (see step 3), the replenishment phase is simulated to reproduce the physical state of the system after the replenishment, which is characterized by a certain number of desorbed fragments and the spatial distribution of
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Published 13 Oct 2021

A review of defect engineering, ion implantation, and nanofabrication using the helium ion microscope

  • Frances I. Allen

Beilstein J. Nanotechnol. 2021, 12, 633–664, doi:10.3762/bjnano.12.52

Graphical Abstract
  • HSQ resist [106] (Figure 5a). These results showcased both (1) the high patterning resolution of individual features, made possible by the subnanometer probe, minimal lateral scatter of ions in the resist, and associated narrow spatial distribution of secondary electrons, as well as (2) the greatly
  • Winston et al. in Figure 5b [107]. Modeling and experimental measurements of the 2D point-spread function for HIBL (i.e., the spatial distribution of energy deposition, which determines the proximity effect) can be found in the same reference. Cai et al. extended this work to a 3D visualization of the
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Published 02 Jul 2021

Stability and activity of platinum nanoparticles in the oxygen electroreduction reaction: is size or uniformity of primary importance?

  • Kirill O. Paperzh,
  • Anastasia A. Alekseenko,
  • Vadim A. Volochaev,
  • Ilya V. Pankov,
  • Olga A. Safronenko and
  • Vladimir E. Guterman

Beilstein J. Nanotechnol. 2021, 12, 593–606, doi:10.3762/bjnano.12.49

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  • . Keywords: durability; electrocatalysts; morphology control; oxygen reduction reaction; platinum nanoparticles; size distribution; spatial distribution; Introduction Nowadays, low-temperature proton-exchange membrane fuel cells (PEMFC) are gaining a wider application. This is due to their environmental
  • regard, of particular interest are the methods for the synthesis of catalysts, which make it possible to obtain materials that combine small size of the nanoparticles, their narrow dimensional and uniform spatial distribution over the surface, and pores of support. This study was based on the hypothesis
  • that Pt/C catalysts containing small nanoparticles, which are similar in size and uniformly distributed over the surface of a carbon support, can be both more active and more stable than catalysts based on larger particles, but with less uniformity of dimensional and spatial distribution. Thus, the aim
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Published 29 Jun 2021

Properties of graphene deposited on GaN nanowires: influence of nanowire roughness, self-induced nanogating and defects

  • Jakub Kierdaszuk,
  • Piotr Kaźmierczak,
  • Justyna Grzonka,
  • Aleksandra Krajewska,
  • Aleksandra Przewłoka,
  • Wawrzyniec Kaszub,
  • Zbigniew R. Zytkiewicz,
  • Marta Sobanska,
  • Maria Kamińska,
  • Andrzej Wysmołek and
  • Aneta Drabińska

Beilstein J. Nanotechnol. 2021, 12, 566–577, doi:10.3762/bjnano.12.47

Graphical Abstract
  • but also graphene deformation itself create defects in graphene and influence their spatial distribution. A very low density of supporting NWs also decreases the number of defects in graphene. The intensity of both defect bands D and D’ (RDD’) depends on defect density and parameters describing the
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Published 22 Jun 2021

Rapid controlled synthesis of gold–platinum nanorods with excellent photothermal properties under 808 nm excitation

  • Jialin Wang,
  • Qianqian Duan,
  • Min Yang,
  • Boye Zhang,
  • Li Guo,
  • Pengcui Li,
  • Wendong Zhang and
  • Shengbo Sang

Beilstein J. Nanotechnol. 2021, 12, 462–472, doi:10.3762/bjnano.12.37

Graphical Abstract
  • during heating [15][16]. Pt nanoparticles have better light and thermal stability then Au nanoparticles [17]. Au–Pt bimetal nanoparticles may not only further enrich the functions of nanostructures, but the spatial distribution of both elements also plays an important role in adjusting the properties
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Published 17 May 2021

The role of gold atom concentration in the formation of Cu–Au nanoparticles from the gas phase

  • Yuri Ya. Gafner,
  • Svetlana L. Gafner,
  • Darya A. Ryzkova and
  • Andrey V. Nomoev

Beilstein J. Nanotechnol. 2021, 12, 72–81, doi:10.3762/bjnano.12.6

Graphical Abstract
  • ) were found in the spatial distribution shown in [3] and a pure copper cluster melts at 1100 K [21], even with a size of 2200 atoms, the temperature of the system should be equivalent to the higher melting point (Tm = 1358 K for copper). Therefore, a comparative analysis between the spatial distribution
  • simulation and the data on the size distribution of Cu3Au clusters obtained by laser deposition [3]. An analysis of the shape and distribution of the Cu3Au clusters on the substrate indicates that the agglomeration processes were suppressed in this case [3]. The reason for that may be the wide spatial
  • distribution of the evaporated primary fragments of the cluster due to the high ambient temperature. This interferes with the combination of the resulting clusters as a result of the high kinetic energy of the atoms, and, possibly, also of the short time of approach to the substrate. As a result, in the case
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Published 19 Jan 2021

Bulk chemical composition contrast from attractive forces in AFM force spectroscopy

  • Dorothee Silbernagl,
  • Media Ghasem Zadeh Khorasani,
  • Natalia Cano Murillo,
  • Anna Maria Elert and
  • Heinz Sturm

Beilstein J. Nanotechnol. 2021, 12, 58–71, doi:10.3762/bjnano.12.5

Graphical Abstract
  • statistically. This is done by plotting them as histograms, individually or correlated as kr(xi,yi) as a function of Fattr(xi,yi), which leads to the kr/Fattr diagram, as shown in Figure 2c. By plotting the results in the kr/Fattr diagram, the information about the spatial distribution is lost. However, insight
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Published 18 Jan 2021

Molecular dynamics modeling of the influence forming process parameters on the structure and morphology of a superconducting spin valve

  • Alexander Vakhrushev,
  • Aleksey Fedotov,
  • Vladimir Boian,
  • Roman Morari and
  • Anatolie Sidorenko

Beilstein J. Nanotechnol. 2020, 11, 1776–1788, doi:10.3762/bjnano.11.160

Graphical Abstract
  • superconductor nanolayers. The aim was to study the influence of the main technological parameters including temperature, concentration and spatial distribution of deposited atoms over the nanosystem surface on the atomic structure and morphology of the nanosystem. The studies were carried out using the
  • technological parameters (substrate temperature, concentration and spatial distribution of the deposited atoms over the interface) on the structure and morphology of the layered nanosystem. Mathematical Model and Theoretical Foundations The formation processes and the structure of multilayer systems for
  • neighbors in a nanosystem, and therefore on its structure and properties. A significant decrease in the coordination number in the outer layers of the last nanofilm is associated with the surface effects and boundary phenomena appearance in that region. The spatial distribution of this parameter is shown in
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Published 24 Nov 2020

Self-assembly and spectroscopic fingerprints of photoactive pyrenyl tectons on hBN/Cu(111)

  • Domenik M. Zimmermann,
  • Knud Seufert,
  • Luka Ðorđević,
  • Tobias Hoh,
  • Sushobhan Joshi,
  • Tomas Marangoni,
  • Davide Bonifazi and
  • Willi Auwärter

Beilstein J. Nanotechnol. 2020, 11, 1470–1483, doi:10.3762/bjnano.11.130

Graphical Abstract
  • Figures S1–S5, Supporting Information File 1). The computations revealed that the pyrenes have large orbital coefficients at the 1-, 3-, 6-, and 8-positions, with the nodal plane going through the 2- and 7-positions (Figure 1) [69][70][71][72][73][74]. As a consequence of this spatial distribution, the
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Published 29 Sep 2020

Controlling the proximity effect in a Co/Nb multilayer: the properties of electronic transport

  • Sergey Bakurskiy,
  • Mikhail Kupriyanov,
  • Nikolay V. Klenov,
  • Igor Soloviev,
  • Andrey Schegolev,
  • Roman Morari,
  • Yury Khaydukov and
  • Anatoli S. Sidorenko

Beilstein J. Nanotechnol. 2020, 11, 1336–1345, doi:10.3762/bjnano.11.118

Graphical Abstract
  • differ. The numerical solution of the boundary problem (Equation 2, Equation 3) provides the required spatial distribution of the pair potential, Δ(x), as well as the anomalous, Φ(x), and normal, G(x), Green’s functions at a given temperature. We found that the behavior of the system significantly
  • strongly dependent on the distance from the bulk electrode. At temperature values above TC*, the spatial distribution has a similar shape, although a significant pairing amplitude appears only in the s-layers closest to the bulk semiconductor electrode. An additional possible consequence of such spatial
  • external magnetic field do not occur simultaneously, but instead gradually from the outer to the inner layers of the structure. The calculated distribution of the anomalous Green’s function, F, allows for the estimation of the screening properties of the hybrid structure. The spatial distribution of the
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Published 07 Sep 2020

Monolayers of MoS2 on Ag(111) as decoupling layers for organic molecules: resolution of electronic and vibronic states of TCNQ

  • Asieh Yousofnejad,
  • Gaël Reecht,
  • Nils Krane,
  • Christian Lotze and
  • Katharina J. Franke

Beilstein J. Nanotechnol. 2020, 11, 1062–1071, doi:10.3762/bjnano.11.91

Graphical Abstract
  • ], this appearance can be associated to the spatial distribution of the lowest unoccupied molecular orbital (LUMO). The molecular arrangement can be described by the lattice vectors a1 = 0.9 ± 0.1 nm, a2 = 1.0 ± 0.1 nm and the angle (96 ± 2)° (see model in Figure 3c). This structure is stabilized by
  • used to calculate the tunneling matrix element Mts with an s-wave tip at a tip–molecule distance of 7.5 Å, work function of 5 eV. The map of the spatial distribution of is shown in the middle panel. a) STM topography image of a TCNQ island recorded at V = 1 V, I = 10 pA. b) Simulated (top panel) and
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Published 20 Jul 2020

Hexagonal boron nitride: a review of the emerging material platform for single-photon sources and the spin–photon interface

  • Stefania Castelletto,
  • Faraz A. Inam,
  • Shin-ichiro Sato and
  • Alberto Boretti

Beilstein J. Nanotechnol. 2020, 11, 740–769, doi:10.3762/bjnano.11.61

Graphical Abstract
  • ][120] from low to high energy electrons, with the high energy electrons improving the yield and the spatial distribution of the emitters away from the edges in the center of the flake; oxygen plasma etching associated with annealing [121] and in particular a process of only two steps, including Ar
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Published 08 May 2020

Four self-made free surface electrospinning devices for high-throughput preparation of high-quality nanofibers

  • Yue Fang and
  • Lan Xu

Beilstein J. Nanotechnol. 2019, 10, 2261–2274, doi:10.3762/bjnano.10.218

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  • intensity of the MBE device decreases to near zero before it increases slightly at larger distances. To further compare the spatial distribution of the electric fields of the MBE, MFSE, OSFSE and SSFSE devices, a parameter ƒ is introduced as follows: where Emax is the maximum electric field intensity and
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Published 15 Nov 2019

Liquid crystal tunable claddings for polymer integrated optical waveguides

  • José M. Otón,
  • Manuel Caño-García,
  • Fernando Gordo,
  • Eva Otón,
  • Morten A. Geday and
  • Xabier Quintana

Beilstein J. Nanotechnol. 2019, 10, 2163–2170, doi:10.3762/bjnano.10.209

Graphical Abstract
  • same LC structure was mounted on top of the MMIs. Modeling of mode propagation and electric field spatial distribution was performed employing the COMSOL® finite element suite loaded with electromagnetics modules. The electric field distribution in waveguides normal sections was calculated with a code
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Published 05 Nov 2019

Gold-coated plant virus as computed tomography imaging contrast agent

  • Alaa A. A. Aljabali,
  • Mazhar S. Al Zoubi,
  • Khalid M. Al-Batanyeh,
  • Ali Al-Radaideh,
  • Mohammad A. Obeid,
  • Abeer Al Sharabi,
  • Walhan Alshaer,
  • Bayan AbuFares,
  • Tasnim Al-Zanati,
  • Murtaza M. Tambuwala,
  • Naveed Akbar and
  • David J. Evans

Beilstein J. Nanotechnol. 2019, 10, 1983–1993, doi:10.3762/bjnano.10.195

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  • and size, indicating that they are resistant to solubilization or oxidation. The dual STEM and EDX spectra from the Antibody-PEG5000Au-CPMV gave useful information about the spatial distribution of gold and sulfur across the cellular surface. The simultaneously acquired EDX spectrum images confirmed
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Published 07 Oct 2019

Fabrication of silver nanoisland films by pulsed laser deposition for surface-enhanced Raman spectroscopy

  • Bogusław Budner,
  • Mariusz Kuźma,
  • Barbara Nasiłowska,
  • Bartosz Bartosewicz,
  • Malwina Liszewska and
  • Bartłomiej J. Jankiewicz

Beilstein J. Nanotechnol. 2019, 10, 882–893, doi:10.3762/bjnano.10.89

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  • D can be due to the formation of highly SERS active sites (in the gaps) but with a non-homogenous spatial distribution. The SERS activity of samples F, G and H, I behaves similar to that of samples A–E as the number of laser pulses increases. However, the use of a lower laser fluence during the
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Published 16 Apr 2019

Periodic Co/Nb pseudo spin valve for cryogenic memory

  • Nikolay Klenov,
  • Yury Khaydukov,
  • Sergey Bakurskiy,
  • Roman Morari,
  • Igor Soloviev,
  • Vladimir Boian,
  • Thomas Keller,
  • Mikhail Kupriyanov,
  • Anatoli Sidorenko and
  • Bernhard Keimer

Beilstein J. Nanotechnol. 2019, 10, 833–839, doi:10.3762/bjnano.10.83

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  • in the negative direction. Thus the use of the pseudo-spin-valve concept allows us to organize AP alignment without exchange or magnetostatic coupling of neighboring F layers. Figure 2a shows the spatial distribution of the pair potential amplitudes in the S/[F1/s/F2/s ]n/F1/S structure for the P and
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Published 09 Apr 2019

Biomimetic synthesis of Ag-coated glasswing butterfly arrays as ultra-sensitive SERS substrates for efficient trace detection of pesticides

  • Guochao Shi,
  • Mingli Wang,
  • Yanying Zhu,
  • Yuhong Wang,
  • Xiaoya Yan,
  • Xin Sun,
  • Haijun Xu and
  • Wanli Ma

Beilstein J. Nanotechnol. 2019, 10, 578–588, doi:10.3762/bjnano.10.59

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  • ). (a) FE-SEM images of Ag-G.b.-20 SERS substrate (the region in the red circle is the selected area used in the 3D-FDTD simulation). (b) Simulation model Ag-G.b.-20 SERS substrate. (c) The spatial distribution of the electromagnetic field intensity simulation results. (a) Raman spectra of 10−4 M CV
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Published 28 Feb 2019

Study of silica-based intrinsically emitting nanoparticles produced by an excimer laser

  • Imène Reghioua,
  • Mattia Fanetti,
  • Sylvain Girard,
  • Diego Di Francesca,
  • Simonpietro Agnello,
  • Layla Martin-Samos,
  • Marco Cannas,
  • Matjaz Valant,
  • Melanie Raine,
  • Marc Gaillardin,
  • Nicolas Richard,
  • Philippe Paillet,
  • Aziz Boukenter,
  • Youcef Ouerdane and
  • Antonino Alessi

Beilstein J. Nanotechnol. 2019, 10, 211–221, doi:10.3762/bjnano.10.19

Graphical Abstract
  • information that was not possible to obtain in [18]. Figure 4f illustrates the CL mapping of the same group of nanoparticles. The comparison with the SEM image (Figure 4a) provides evidence for a correspondence between the CL signal and the spatial distribution of the nanoparticles. Indeed, regions containing
  • the EDX analysis providing evidence of the essential correspondence between the morphology and the spatial distribution of the Ge, Si and O content independent from the energy per pulse. Such results suggest that the produced nanoparticles should be constituted of Ge/Si dioxide. The fact that we
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Published 16 Jan 2019

Femtosecond laser-assisted fabrication of chalcopyrite micro-concentrator photovoltaics

  • Franziska Ringleb,
  • Stefan Andree,
  • Berit Heidmann,
  • Jörn Bonse,
  • Katharina Eylers,
  • Owen Ernst,
  • Torsten Boeck,
  • Martina Schmid and
  • Jörg Krüger

Beilstein J. Nanotechnol. 2018, 9, 3025–3038, doi:10.3762/bjnano.9.281

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  • -structured substrates. Indium has a strong tendency towards island growth during physical vapor deposition (PVD) on molybdenum substrates. On smooth molybdenum surfaces, indium islands nucleate with random spatial distribution. Indium prefers to accumulate on rough areas. Hence, preferential island
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Published 12 Dec 2018

Size limits of magnetic-domain engineering in continuous in-plane exchange-bias prototype films

  • Alexander Gaul,
  • Daniel Emmrich,
  • Timo Ueltzhöffer,
  • Henning Huckfeldt,
  • Hatice Doğanay,
  • Johanna Hackl,
  • Muhammad Imtiaz Khan,
  • Daniel M. Gottlob,
  • Gregor Hartmann,
  • André Beyer,
  • Dennis Holzinger,
  • Slavomír Nemšák,
  • Claus M. Schneider,
  • Armin Gölzhäuser,
  • Günter Reiss and
  • Arno Ehresmann

Beilstein J. Nanotechnol. 2018, 9, 2968–2979, doi:10.3762/bjnano.9.276

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  • ionic effects [6]. The change of the spatial distribution of the charge contrast, when varying from 0° (Figure 1a) to 90° (Figure 1d), results from the transition of monopolar to bipolar magnetic charge states. This is associated with a decrease of the charge contrast in the center of the DWs. The
  • simulations was set for or a maximum step number of 2 × 105 iterations. Appendix SRIM simulations of the ion energy loss distribution: To determine the distribution of ions and the spatial distribution of the transferred energy in the sample, simulations using the SRIM software framework have been performed
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Published 03 Dec 2018

Site-controlled formation of single Si nanocrystals in a buried SiO2 matrix using ion beam mixing

  • Xiaomo Xu,
  • Thomas Prüfer,
  • Daniel Wolf,
  • Hans-Jürgen Engelmann,
  • Lothar Bischoff,
  • René Hübner,
  • Karl-Heinz Heinig,
  • Wolfhard Möller,
  • Stefan Facsko,
  • Johannes von Borany and
  • Gregor Hlawacek

Beilstein J. Nanotechnol. 2018, 9, 2883–2892, doi:10.3762/bjnano.9.267

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  • uncertainty is represented by the standard deviation of NC diameter) and an in-plane spacing between the NCs of approximately 12 nm is obtained. Ion beam mixing by focused beam irradiation To realize a single Si NC instead of a 2D array of NCs, the spatial distribution of the mixed material has to be
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Published 16 Nov 2018

Charged particle single nanometre manufacturing

  • Philip D. Prewett,
  • Cornelis W. Hagen,
  • Claudia Lenk,
  • Steve Lenk,
  • Marcus Kaestner,
  • Tzvetan Ivanov,
  • Ahmad Ahmad,
  • Ivo W. Rangelow,
  • Xiaoqing Shi,
  • Stuart A. Boden,
  • Alex P. G. Robinson,
  • Dongxu Yang,
  • Sangeetha Hari,
  • Marijke Scotuzzi and
  • Ejaz Huq

Beilstein J. Nanotechnol. 2018, 9, 2855–2882, doi:10.3762/bjnano.9.266

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  • ): Equation 3 was fitted to the experimental results as shown in Figure 8e, giving a standard deviation of β = 67 nm for the spatial distribution of the backscattered energy for SHIBL, which is almost 50-times smaller than the corresponding EBL value. Thus, while there is some residual proximity effect in the
  • parameters. Silvis-Cividjian [70] developed a Monte Carlo model for EBID, specifically for high-resolution deposits, taking into account the energy and spatial distribution of SEs. This elucidates the crucial role played by the SEs generated in the deposit itself in determining the final deposit size
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Published 14 Nov 2018

Biomimetic surface structures in steel fabricated with femtosecond laser pulses: influence of laser rescanning on morphology and wettability

  • Camilo Florian Baron,
  • Alexandros Mimidis,
  • Daniel Puerto,
  • Evangelos Skoulas,
  • Emmanuel Stratakis,
  • Javier Solis and
  • Jan Siegel

Beilstein J. Nanotechnol. 2018, 9, 2802–2812, doi:10.3762/bjnano.9.262

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  • many cases, ordered structures (namely ripples, grooves or spikes). The presence of these structures greatly influences the spatial distribution of the scattered light [26][28] and the coupling efficiency and propagation of surface plasmon polaritons. As a consequence, the spatial intensity
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Published 05 Nov 2018
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