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Search for "number of layers" in Full Text gives 64 result(s) in Beilstein Journal of Nanotechnology.
High sensitivity and high resolution element 3D analysis by a combined SIMS–SPM instrument
Beilstein J. Nanotechnol. 2015, 6, 1091–1099, doi:10.3762/bjnano.6.110
- , we found that the carbon-containing Ti grains sputter 2.8 times slower than the Co binding material. This same protocol could be used for the combined SIMS–AFM analysis of a multi-layered sample by recording the topography at each one of the interfaces. In the case where a number of layers presented
Electroburning of few-layer graphene flakes, epitaxial graphene, and turbostratic graphene discs in air and under vacuum
Beilstein J. Nanotechnol. 2015, 6, 711–719, doi:10.3762/bjnano.6.72
- under vacuum. The dependence of Ibreak on Ri, which is primarily determined by the number of layers of the flakes (inversely proportional), suggests that the EB occurs at a constant current density (which only depends on the geometry of the device), regardless of the environment conditions, and in
- exfoliation method from natural graphite pieces on top of a p-doped silicon wafer coated with 300 nm of oxide. Flakes of suitable thickness (1 to approx. 20 layers) were located with an optical microscope on the basis of their contrast with the substrate. In some cases, the effective number of layers is also
Filling of carbon nanotubes and nanofibres
Beilstein J. Nanotechnol. 2015, 6, 508–516, doi:10.3762/bjnano.6.53
- single, double or multiple coaxial layers of graphene [1]. The synthesis method and conditions greatly affect their structural characteristics such as number of layers, length and diameter distribution [2]. For example, the arc discharge synthesis method can be used to produce multiwalled carbon
- of graphene, decorated with palladium particles via arc discharge in solution [105][106] (see Figure 2). This approach was able to produce filled SWCNTs or MWCNTs, depending on the number of layers of graphene used. In addition, it has been proposed that other metallic particles can be used. This has
Raman spectroscopy as a tool to investigate the structure and electronic properties of carbon-atom wires
Beilstein J. Nanotechnol. 2015, 6, 480–491, doi:10.3762/bjnano.6.49
- information on their structure, hybridization state, defects, presence of functionalization and/or doping, and can even quantify the nanotube chirality, the number of layers and the edge structure in graphene [22][23]. In this review we discuss how Raman spectroscopy can be utilized to obtain a wealth of
Tunable light filtering by a Bragg mirror/heavily doped semiconducting nanocrystal composite
Beilstein J. Nanotechnol. 2015, 6, 193–200, doi:10.3762/bjnano.6.18
- gap. The chosen materials, layer thicknesses, and number of layers are typical variable parameters for Bragg mirrors. The absorption properties of such variable stackings are well-studied and demonstrated in experimental frameworks, thus, appropriate for the actual applicability of our proposed device
X-ray photoelectron spectroscopy of graphitic carbon nanomaterials doped with heteroatoms
Beilstein J. Nanotechnol. 2015, 6, 177–192, doi:10.3762/bjnano.6.17
- Rajasekaran et al. [77] found no difference between single- and few-layer graphene (both measured at 284.0 eV). On the other hand, Emtsev et al. [64] and Hibino et al. [73] measured the C 1s energy of mono- to few-layer graphene epitaxial on silicon carbide as a function of the number of layers, and found
Two-dimensional and tubular structures of misfit compounds: Structural and electronic properties
Beilstein J. Nanotechnol. 2014, 5, 2171–2178, doi:10.3762/bjnano.5.226
- is according to the polytypes of their lamellar compounds, that is, their stacking order (number of layers in the unit cell) and symmetry (T, H, R for trigonal, hexagonal, rhombohedral symmetry, respectively) generate the labels. As can be seen in Figure 1, different sequences of stacking are
The impact of the confinement of reactants on the metal distribution in bimetallic nanoparticles synthesized in reverse micelles
Beilstein J. Nanotechnol. 2014, 5, 1966–1979, doi:10.3762/bjnano.5.206
- the synthesis reaches the shell formation. The nanoparticle structure is also represented by means of concentric spheres whose thickness is proportional to the number of layers for a given composition, keeping the same color scheme. Results and Discussion Metal distribution in Au–Pt nanoparticles for
Donor–acceptor graphene-based hybrid materials facilitating photo-induced electron-transfer reactions
Beilstein J. Nanotechnol. 2014, 5, 1580–1589, doi:10.3762/bjnano.5.170
- especially the number of layers in a particular sample. Overall, based on such complementary spectroscopic, microscopy and thermal techniques graphene-based hybrid materials can be qualitatively monitored, while at the same time information about the dimensions and purity is obtained. With regard to energy
Pure hydrogen low-temperature plasma exposure of HOPG and graphene: Graphane formation?
Beilstein J. Nanotechnol. 2012, 3, 852–859, doi:10.3762/bjnano.3.96
- spectroscopy measurements were prepared by exfoliation of HOPG using a PDMS stamp and transferring them on SiO2 [42]. The number of layers was determined from the 2D peak of the Raman spectra, which was acquired prior to plasma treatment. An intermittent contact-mode AFM experiment was performed by means of a
Towards atomic resolution in sodium titanate nanotubes using near-edge X-ray-absorption fine-structure spectromicroscopy combined with multichannel multiple-scattering calculations
Beilstein J. Nanotechnol. 2012, 3, 789–797, doi:10.3762/bjnano.3.88
- -resolution TEM images (Figure 1c and Figure 1d) show that the tubes have a different number of layers in each edge (for instance Figure 1c has four layers on the left, three on the right), suggesting that these are very likely hollow nanoscrolls, consistent with previous observations [11][32]. Characteristic
- hollow core of these nanostructures (inset shows the interlayer spacing). (c–d) HRTEM images showing typical image contrast pattern associated with the scroll-like morphology. Note the number of layers in opposing tube walls is different in each case. (a) X-ray images at different photon energies E from
Glassy carbon electrodes modified with multiwalled carbon nanotubes for the determination of ascorbic acid by square-wave voltammetry
Beilstein J. Nanotechnol. 2012, 3, 388–396, doi:10.3762/bjnano.3.45
- , which results in poor selectivity and reproducibility, thus limiting the use of bare GCEs in quantitative measurements. Presently there are increasing reports on the use of carbon nanotubes (CNTs) in electroanalysis [10]. CNTs may be multiwalled or single-walled depending on the number of layers of
Pulse-response measurement of frequency-resolved water dynamics on a hydrophilic surface using a Q-damped atomic force microscopy cantilever
Beilstein J. Nanotechnol. 2012, 3, 260–266, doi:10.3762/bjnano.3.29
- method with operation modes having resolution along the substrate-normal direction, such as the force-profile measurement. It should also be noted that the properties of solvation layers are strongly dependent on the number of layers. In order for the probe not to destroy the layer with the pulse motion
On the reticular construction concept of covalent organic frameworks
Beilstein J. Nanotechnol. 2010, 1, 60–70, doi:10.3762/bjnano.1.8
- Enltot is the total energy of ns number of layers stacked in a COF. Finally, the COF formation energy can be given as a sum of Ec,b and Es,b. The calculated energies are given in Table 2 (and Table S4 in Supporting Information File 1) for all the studied stacking kinds. All energies are given in terms of
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