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Search for "crystal structure" in Full Text gives 326 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Selective detection of complex gas mixtures using point contacts: concept, method and tools

  • Alexander P. Pospelov,
  • Victor I. Belan,
  • Dmytro O. Harbuz,
  • Volodymyr L. Vakula,
  • Lyudmila V. Kamarchuk,
  • Yuliya V. Volkova and
  • Gennadii V. Kamarchuk

Beilstein J. Nanotechnol. 2020, 11, 1631–1643, doi:10.3762/bjnano.11.146

Graphical Abstract
  • adsorbed on the conduction channel of the Yanson point contact create areas with distortions in the crystal structure of the contact material. This leads to a shortening of the mean free path of electrons in the contact area and increases the probability of scattering of nonequilibrium electrons at the
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Published 28 Oct 2020

Helium ion microscope – secondary ion mass spectrometry for geological materials

  • Matthew R. Ball,
  • Richard J. M. Taylor,
  • Joshua F. Einsle,
  • Fouzia Khanom,
  • Christelle Guillermier and
  • Richard J. Harrison

Beilstein J. Nanotechnol. 2020, 11, 1504–1515, doi:10.3762/bjnano.11.133

Graphical Abstract
  • substitute in the crystal lattice within a solid solution. The Li signal appears to be stronger along mica sheets perpendicular to the c-axis of the crystal structure. However, this may be the result of surface topography similar to that observed in the zircon samples, as a result of polishing picking out
  • the c-axis of the crystal structure, instead of a geological effect, such as greisenization. The sensitivity toward Li has also been investigated in NIST glass standards. The NIST 612 standard has a known total Li concentration of 40 µg/g [28], which corresponds to concentrations of 37 µg/g for 7Li
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Published 02 Oct 2020

Effect of localized helium ion irradiation on the performance of synthetic monolayer MoS2 field-effect transistors

  • Jakub Jadwiszczak,
  • Pierce Maguire,
  • Conor P. Cullen,
  • Georg S. Duesberg and
  • Hongzhou Zhang

Beilstein J. Nanotechnol. 2020, 11, 1329–1335, doi:10.3762/bjnano.11.117

Graphical Abstract
  • significant n-dopant densities and suppressing the unwanted crystal structure amorphization which results from high irradiation doses. At high IR values (red group), we observe the emergence of a weak ambipolar response in our transfer curves. At these ratios, the device starts to enter a regime where more
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Published 04 Sep 2020

Structural and electronic properties of SnO2 doped with non-metal elements

  • Jianyuan Yu,
  • Yingeng Wang,
  • Yan Huang,
  • Xiuwen Wang,
  • Jing Guo,
  • Jingkai Yang and
  • Hongli Zhao

Beilstein J. Nanotechnol. 2020, 11, 1321–1328, doi:10.3762/bjnano.11.116

Graphical Abstract
  • Technology Tangshan Public Service Platform, Tangshan, Hebei 063000, China School of Civil Engineering, Tangshan University, Tangshan, Hebei 063000, China State Key Laboratory of Metastable Materials Science and Technology, China 10.3762/bjnano.11.116 Abstract Crystal structure and electronic properties of
  • . When the concentration of the precursor solution was adjusted to 0.15 M and the substrate temperature was 773 K, a film with a resistivity of 1.2 × 10−4 Ω·cm was obtained [10]. Theoretical calculations, based on first principles, show that the doping of N into the SnO2 crystal structure can introduce
  • dope SnO2. The calculations were carried out with the CASTEP software. In this paper, density functional theory (DFT) is used to analyze electronic structure and optical properties of SnO2 doped with non-metal elements. Crystal Structure Model and Calculation Method The SnO2 crystal has a tetragonal
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Published 03 Sep 2020

Structure and electrochemical performance of electrospun-ordered porous carbon/graphene composite nanofibers

  • Yi Wang,
  • Yanhua Song,
  • Chengwei Ye and
  • Lan Xu

Beilstein J. Nanotechnol. 2020, 11, 1280–1290, doi:10.3762/bjnano.11.112

Graphical Abstract
  • electrochemical properties of the original carbon matrix can be significantly improved [27]. The perfect crystalline graphene has an ideal two-dimensional crystal structure composed of a stable regular hexagonal lattice, which has an excellent theoretical specific surface area, increased electron mobility, high
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Published 27 Aug 2020

Proximity effect in [Nb(1.5 nm)/Fe(x)]10/Nb(50 nm) superconductor/ferromagnet heterostructures

  • Yury Khaydukov,
  • Sabine Pütter,
  • Laura Guasco,
  • Roman Morari,
  • Gideok Kim,
  • Thomas Keller,
  • Anatolie Sidorenko and
  • Bernhard Keimer

Beilstein J. Nanotechnol. 2020, 11, 1254–1263, doi:10.3762/bjnano.11.109

Graphical Abstract
  • energy was directed along the azimuth of the sapphire substrate. In order to check the crystal structure and the quality of the epitaxial growth, X-ray diffraction measurements were performed using a θ–2θ diffractometer. The diffractometer operates at the wavelength of λ = 1.54 Å and is equipped with a
  • RRR on the crystal structure of thick Nb indicates that the transport experiment is sensitive to the thick niobium layer, i.e., the current does flow through it. If this is the case, then the transition of the thick niobium to the superconducting state should lead to a (almost) complete loss of
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Published 21 Aug 2020

Magnetic-field-assisted synthesis of anisotropic iron oxide particles: Effect of pH

  • Andrey V. Shibaev,
  • Petr V. Shvets,
  • Darya E. Kessel,
  • Roman A. Kamyshinsky,
  • Anton S. Orekhov,
  • Sergey S. Abramchuk,
  • Alexei R. Khokhlov and
  • Olga E. Philippova

Beilstein J. Nanotechnol. 2020, 11, 1230–1241, doi:10.3762/bjnano.11.107

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  • University, Albert-Einstein-Allee 11, 89069 Ulm, Germany 10.3762/bjnano.11.107 Abstract The synthesis of magnetite (Fe3O4) nanorods using reverse co-precipitation of Fe3+ and Fe2+ ions in the presence of a static magnetic field is reported in this work. The phase composition and crystal structure of the
  • be changed in a controllable manner. In addition, no study has been performed so far to elucidate how the synthesis conditions influence the nanoparticle shape, size, and crystal structure. Recent studies [14][31][32][42] showed that one of the key parameters that controls the iron oxide nanoparticle
  • and rod-like nanoparticles have the same crystal structure. Some of these point reflexes correspond to very weak rings that are scarcely seen even in the reference diffraction pattern. In order to get detailed information about the crystal structure of the synthesized nanoparticles, a 1D electron
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Published 17 Aug 2020

Nonadiabatic superconductivity in a Li-intercalated hexagonal boron nitride bilayer

  • Kamila A. Szewczyk,
  • Izabela A. Domagalska,
  • Artur P. Durajski and
  • Radosław Szczęśniak

Beilstein J. Nanotechnol. 2020, 11, 1178–1189, doi:10.3762/bjnano.11.102

Graphical Abstract
  • the best substrate for graphene is hexagonal boron nitride (hBN) with a honeycomb crystal structure in which boron (B) and nitrogen (N) atoms alternatingly occupy the hexagonal lattice nodes. In the bulk form, hBN was synthesized by Nagashima et al. in 1995 [31]. A decade later, the two-dimensional
  • its applications. The vertex corrections of the order of λ3 slightly decrease . Note that the low values of TC occur in principle in the whole family of systems in which a honeycomb crystal structure plays an important role [5][47][48][49]. This structure, although fundamental for the properties of
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Published 07 Aug 2020

Gram-scale synthesis of splat-shaped Ag–TiO2 nanocomposites for enhanced antimicrobial properties

  • Mohammad Jaber,
  • Asim Mushtaq,
  • Kebiao Zhang,
  • Jindan Wu,
  • Dandan Luo,
  • Zihan Yi,
  • M. Zubair Iqbal and
  • Xiangdong Kong

Beilstein J. Nanotechnol. 2020, 11, 1119–1125, doi:10.3762/bjnano.11.96

Graphical Abstract
  • with ethanol and centrifuged for further use. Pure TiO2 NPs were also prepared by using the above method without the addition of Ag as a precursor. Sample characterizations The crystal structure of the samples was investigated through X-ray diffraction (XRD, ARL X'TRA, Thermo Techno, USA) using a
  • solutions, dried and applied on the culture plates. Finally, the plates were incubated at 37 °C for 24 h and the zone of inhibition was measured around the disc to estimate the antimicrobial activity [22]. Results and Discussion The XRD spectra were analyzed to verify the crystal structure and the phase
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Published 29 Jul 2020

Excitonic and electronic transitions in Me–Sb2Se3 structures

  • Nicolae N. Syrbu,
  • Victor V. Zalamai,
  • Ivan G. Stamov and
  • Stepan I. Beril

Beilstein J. Nanotechnol. 2020, 11, 1045–1053, doi:10.3762/bjnano.11.89

Graphical Abstract
  • . A similar approach was used when the Sb2S3 single crystals were investigated [24]. Since the Sn2S3 and Sn2Se3 crystals have the same crystal structure and a similar band structure (only with a different bandgap) the excitons observed had the same symmetries. Based on the obtained experimental data
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Published 16 Jul 2020

A new photodetector structure based on graphene nanomeshes: an ab initio study

  • Babak Sakkaki,
  • Hassan Rasooli Saghai,
  • Ghafar Darvish and
  • Mehdi Khatir

Beilstein J. Nanotechnol. 2020, 11, 1036–1044, doi:10.3762/bjnano.11.88

Graphical Abstract
  • makes it suitable for optical devices. Keywords: absorption spectra; DFT calculations; graphene nanomesh; graphene nanoribbon; photodetectors; Introduction Graphene monolayers with honeycomb crystal structure have unique electrical and optical properties and have received a lot of attention recently
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Published 15 Jul 2020

Band tail state related photoluminescence and photoresponse of ZnMgO solid solution nanostructured films

  • Vadim Morari,
  • Aida Pantazi,
  • Nicolai Curmei,
  • Vitalie Postolache,
  • Emil V. Rusu,
  • Marius Enachescu,
  • Ion M. Tiginyanu and
  • Veaceslav V. Ursaki

Beilstein J. Nanotechnol. 2020, 11, 899–910, doi:10.3762/bjnano.11.75

Graphical Abstract
  • demonstrated on p-type Si [2][4] because p-type doping is still a big challenge to ZnO-based semiconductors. Liang et al. demonstrated a ZnMgO/p-Si heterojunction solar-blind UV photodetector with a BeO buffer layer [35]. In terms of the crystal structure of ZnMgO films used in photodetectors, three types of
  • structures are used, namely, hexagonal wurtzite structure (w-ZnMgO), cubic rock salt structure (c-ZnMgO) and films with mixed-phase (m-ZnMgO) [5]. Since the crystal structure of the alloy changes from w-ZnMgO to c-ZnMgO with increasing Mg content, the coexistence of two structures in ZnMgO films is
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Published 12 Jun 2020

Light–matter interactions in two-dimensional layered WSe2 for gauging evolution of phonon dynamics

  • Avra S. Bandyopadhyay,
  • Chandan Biswas and
  • Anupama B. Kaul

Beilstein J. Nanotechnol. 2020, 11, 782–797, doi:10.3762/bjnano.11.63

Graphical Abstract
  • [32] (Figure 1b), and a van der Waals gap g = 3.36 Å [33] (Figure 1c, left). The crystal structure of WSe2 (0001) consists of a repetition of Se–W–Se trilayers, as depicted in Figure 1b. The irreducible representation of the phonon modes at the center of the Brillouin zone in WSe2 can be described by
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Published 12 May 2020

Effect of Ag loading position on the photocatalytic performance of TiO2 nanocolumn arrays

  • Jinghan Xu,
  • Yanqi Liu and
  • Yan Zhao

Beilstein J. Nanotechnol. 2020, 11, 717–728, doi:10.3762/bjnano.11.59

Graphical Abstract
  • particles inside the nanocolumn array were observed by TEM. We also studied the crystal structure of the TiO2 nanocolumns. Figure 4 shows the TEM and high-resolution spectra of the nanocolumn structure. Figure 4a shows the bare TiO2 nanocolumns without Ag. It can be seen from the figure that the size of the
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Published 05 May 2020

Electromigration-induced directional steps towards the formation of single atomic Ag contacts

  • Atasi Chatterjee,
  • Christoph Tegenkamp and
  • Herbert Pfnür

Beilstein J. Nanotechnol. 2020, 11, 680–687, doi:10.3762/bjnano.11.55

Graphical Abstract
  • Equation 1 and Equation 2 for an fcc crystal structure are 0.8, 1 and 1.3 for the three principal crystallographic directions [110], [100] and [111], respectively [21]. In order to apply this theory to the thinning at grain boundaries, we have to recall two facts. Firstly, in nanocrystalline elemental
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Published 22 Apr 2020

Exfoliation in a low boiling point solvent and electrochemical applications of MoO3

  • Matangi Sricharan,
  • Bikesh Gupta,
  • Sreejesh Moolayadukkam and
  • H. S. S. Ramakrishna Matte

Beilstein J. Nanotechnol. 2020, 11, 662–670, doi:10.3762/bjnano.11.52

Graphical Abstract
  • steel current collectors, separated by filter paper dipped in 1 M H2SO4 electrolyte. Results and Discussion LPE assisted by tip sonication is an effective technique to peel off mono- and few-layers from layered bulk materials. In the crystal structure of α-MoO3 the atoms are connected to layers through
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Published 17 Apr 2020

Observation of unexpected uniaxial magnetic anisotropy in La2/3Sr1/3MnO3 films by a BaTiO3 overlayer in an artificial multiferroic bilayer

  • John E. Ordóñez,
  • Lorena Marín,
  • Luis A. Rodríguez,
  • Pedro A. Algarabel,
  • José A. Pardo,
  • Roger Guzmán,
  • Luis Morellón,
  • César Magén,
  • Etienne Snoeck,
  • María E. Gómez and
  • Manuel R. Ibarra

Beilstein J. Nanotechnol. 2020, 11, 651–661, doi:10.3762/bjnano.11.51

Graphical Abstract
  • the top layer of the tensile-strained LSMO drastically changes the magnetic anisotropy of the ferromagnetic layer. In previous studies, an emergent uniaxial contribution in LSMO films grown on (001)-oriented STO is associated with crystal distortions of the film where the tetragonal crystal structure
  • thickness of the LSMO layer systematically varied with tLSMO = 20, 27, and 40 nm, maintaining the thickness of the BTO layer constant at tBTO = 140 nm. The thickness of each individual layer was determined by X-ray reflectivity (not shown). The crystal structure analysis of each film was performed by means
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Published 16 Apr 2020

Comparison of fresh and aged lithium iron phosphate cathodes using a tailored electrochemical strain microscopy technique

  • Matthias Simolka,
  • Hanno Kaess and
  • Kaspar Andreas Friedrich

Beilstein J. Nanotechnol. 2020, 11, 583–596, doi:10.3762/bjnano.11.46

Graphical Abstract
  • signal is produced. The olivine crystal structure on the planar locations is not the only influence on the ionic mobility, but it is an additional factor next to the structural disordering, high concentration of defects and lower energy barrier and more important on planar locations than on structural
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Published 07 Apr 2020

Interfacial charge transfer processes in 2D and 3D semiconducting hybrid perovskites: azobenzene as photoswitchable ligand

  • Nicole Fillafer,
  • Tobias Seewald,
  • Lukas Schmidt-Mende and
  • Sebastian Polarz

Beilstein J. Nanotechnol. 2020, 11, 466–479, doi:10.3762/bjnano.11.38

Graphical Abstract
  • the 3D phases make these 2D phases a promising material for optoelectronic applications [7][8][9][10][11]. Larger organic cations “cleave” the crystal structure of the perovskite and are integrated into the material, yielding a high degree of chemical diversity to this class of organic–inorganic
  • inorganic layer with only corner-sharing octahedra. The broadened reflexes of 2D-AzoOC12 suggest the formation of a crystal structure with corner- and face-sharing octahedra [43]. Both crystal types are direct semiconductors [44], which is why the structural differences are not important for our further
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Published 17 Mar 2020

Facile biogenic fabrication of hydroxyapatite nanorods using cuttlefish bone and their bactericidal and biocompatibility study

  • Satheeshkumar Balu,
  • Manisha Vidyavathy Sundaradoss,
  • Swetha Andra and
  • Jaison Jeevanandam

Beilstein J. Nanotechnol. 2020, 11, 285–295, doi:10.3762/bjnano.11.21

Graphical Abstract
  • reaction time leads to the formation of highly crystalline Hap nanorods as shown in Figure 1. It is noteworthy that the XRD pattern of CB powder exactly matches with the aragonite crystal structure of calcium carbonate (CaCO3, JCPDS file 75-2230). Interestingly, aragonite CaCO3 was completely transformed
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Published 04 Feb 2020

High-performance asymmetric supercapacitor made of NiMoO4 nanorods@Co3O4 on a cellulose-based carbon aerogel

  • Meixia Wang,
  • Jing Zhang,
  • Xibin Yi,
  • Benxue Liu,
  • Xinfu Zhao and
  • Xiaochan Liu

Beilstein J. Nanotechnol. 2020, 11, 240–251, doi:10.3762/bjnano.11.18

Graphical Abstract
  • supercapacitor. The crystal structure of CA, NiMoO4, the Co3O4 nanoparticles derived from ZIF-67 and the NiMoO4@Co3O4/CA composite was examined using X-ray powder diffraction (XRD) as shown in Figure 3a. For CA, a broad diffraction peak is observed at about 22.8°, which can be attributed to the (120) planes of
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Published 21 Jan 2020

Antimony deposition onto Au(111) and insertion of Mg

  • Lingxing Zan,
  • Da Xing,
  • Abdelaziz Ali Abd-El-Latif and
  • Helmut Baltruschat

Beilstein J. Nanotechnol. 2019, 10, 2541–2552, doi:10.3762/bjnano.10.245

Graphical Abstract
  • insertion material, because magnesium can form intermetallic compounds with antimony. In addition, Sb has a rhombohedral crystal structure, which can form an alloy over a wide composition range [6][7]. The high initial capacity of 298 mAh/g at 1C rate has been reported for electrochemical magnetization at
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Published 18 Dec 2019

Synthesis and acetone sensing properties of ZnFe2O4/rGO gas sensors

  • Kaidi Wu,
  • Yifan Luo,
  • Ying Li and
  • Chao Zhang

Beilstein J. Nanotechnol. 2019, 10, 2516–2526, doi:10.3762/bjnano.10.242

Graphical Abstract
  • ) planes of the spinel ZnFe2O4 crystals. In addition, the angle of the two is measured as 25.24°, which is consistent with computations of the crystal structure. Moreover, the inserted fast Fourier transform (FFT) image reveals the typical hexagonal diffraction ring of rGO. As shown in Figure 6d, the
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Published 16 Dec 2019

Abrupt elastic-to-plastic transition in pentagonal nanowires under bending

  • Sergei Vlassov,
  • Magnus Mets,
  • Boris Polyakov,
  • Jianjun Bian,
  • Leonid Dorogin and
  • Vahur Zadin

Beilstein J. Nanotechnol. 2019, 10, 2468–2476, doi:10.3762/bjnano.10.237

Graphical Abstract
  • flexible polymer composite materials. Keywords: finite element method; mechanical properties; molecular dynamics; nanowires; Introduction Nanostructures comprised of noble metals with face centered cubic (FCC) crystal structure (Au, Ag and Cu according to the most common physical definition) prepared via
  • ]. In this model, the pentagonal NW was composed of five triangular prism-shaped domains with vertex angle of 72°. These domains represent the FCC single crystals. Each domain was assigned an elasticity matrix of Ag or Au corresponding to their crystal structure to account for structural anisotropy. The
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Published 12 Dec 2019

Self-assembly of a terbium(III) 1D coordination polymer on mica

  • Quentin Evrard,
  • Giuseppe Cucinotta,
  • Felix Houard,
  • Guillaume Calvez,
  • Yan Suffren,
  • Carole Daiguebonne,
  • Olivier Guillou,
  • Andrea Caneschi,
  • Matteo Mannini and
  • Kevin Bernot

Beilstein J. Nanotechnol. 2019, 10, 2440–2448, doi:10.3762/bjnano.10.234

Graphical Abstract
  • mica, however, exhibits a wide excitation band around 312 nm, which could arise from an important change of the local environment of [Tb(hfac)3·2H2O] with the presence of water and potassium ions in close proximity to the hfac ligands. Discussion As previously described [22], the crystal structure of
  • )3·2H2O]n@mica (bottom). Crystal structure of [Tb(hfac)3·2H2O]n [22] with H-bond network highlighted as blue dotted bonds (carbon: brown; oxygen: red; hydrogen: blue; fluorine atoms are omitted for clarity). Luminescence lifetimes of [Tb(hfac)3·2H2O] in CHCl3 solution, [Tb(hfac)3·2H2O]n@mica and bulk
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Published 10 Dec 2019
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