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Search for "aberration-corrected" in Full Text gives 33 result(s) in Beilstein Journal of Nanotechnology.

Synthesis, characterization, and growth simulations of Cu–Pt bimetallic nanoclusters

  • Subarna Khanal,
  • Ana Spitale,
  • Nabraj Bhattarai,
  • Daniel Bahena,
  • J. Jesus Velazquez-Salazar,
  • Sergio Mejía-Rosales,
  • Marcelo M. Mariscal and
  • Miguel José-Yacaman

Beilstein J. Nanotechnol. 2014, 5, 1371–1379, doi:10.3762/bjnano.5.150

Graphical Abstract
  • aberration-corrected STEM, in combination with high resolution spectral and chemical analysis, has allowed us to study the atomic structure of the Cu–Pt bimetallic nanoclusters, and the chemical compositions of the particles were measured by STEM-EDX analysis. HAADF-STEM imaging allowed us to study the
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Published 27 Aug 2014

Surface processes during purification of InP quantum dots

  • Natalia Mordvinova,
  • Pavel Emelin,
  • Alexander Vinokurov,
  • Sergey Dorofeev,
  • Artem Abakumov and
  • Tatiana Kuznetsova

Beilstein J. Nanotechnol. 2014, 5, 1220–1225, doi:10.3762/bjnano.5.135

Graphical Abstract
  • performed with an aberration-corrected FEI Titan 80-300 “cubed” microscope equipped with a Super-X detector and operated at 200 kV. The TEM specimens were prepared by placing drops of the QD suspension onto a holey carbon grid. IR spectra were taken on a Perkin-Elmer “Frontier” FTIR-spectrometer. QDs
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Published 06 Aug 2014

Core level binding energies of functionalized and defective graphene

  • Toma Susi,
  • Markus Kaukonen,
  • Paula Havu,
  • Mathias P. Ljungberg,
  • Paola Ayala and
  • Esko I. Kauppinen

Beilstein J. Nanotechnol. 2014, 5, 121–132, doi:10.3762/bjnano.5.12

Graphical Abstract
  • . Several intrinsic defects are relevant for graphene. Of these, the simplest are single (SV) and double vacancies (DV), along with the Stone–Thrower–Wales (STW) bond rotation. All of these have been directly observed [8] in aberration-corrected transmission electron microscopes (TEM). More extended defects
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Published 03 Feb 2014

Towards atomic resolution in sodium titanate nanotubes using near-edge X-ray-absorption fine-structure spectromicroscopy combined with multichannel multiple-scattering calculations

  • Carla Bittencourt,
  • Peter Krüger,
  • Maureen J. Lagos,
  • Xiaoxing Ke,
  • Gustaaf Van Tendeloo,
  • Chris Ewels,
  • Polona Umek and
  • Peter Guttmann

Beilstein J. Nanotechnol. 2012, 3, 789–797, doi:10.3762/bjnano.3.88

Graphical Abstract
  • as electron energy loss spectroscopy (EELS) performed in aberration-corrected transmission electron microscopes operated at low electron acceleration voltages [30]. Alkali titanate nanostructures are very sensitive to electron-beam irradiation, which has prevented detailed studies at high energetic
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Published 23 Nov 2012

Influence of the diameter of single-walled carbon nanotube bundles on the optoelectronic performance of dry-deposited thin films

  • Kimmo Mustonen,
  • Toma Susi,
  • Antti Kaskela,
  • Patrik Laiho,
  • Ying Tian,
  • Albert G. Nasibulin and
  • Esko I. Kauppinen

Beilstein J. Nanotechnol. 2012, 3, 692–702, doi:10.3762/bjnano.3.79

Graphical Abstract
  • transmission electron microscope observation (HRTEM, double aberration-corrected JEOL JEM-2200FS) of the SWCNT bundle diameters (dbundle), a similar dry-transfer approach was implemented. Copper grids with holey-carbon coating were manually pressed against quartz substrates with the SWCNT networks
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Published 17 Oct 2012

Nano-structuring, surface and bulk modification with a focused helium ion beam

  • Daniel Fox,
  • Yanhui Chen,
  • Colm C. Faulkner and
  • Hongzhou Zhang

Beilstein J. Nanotechnol. 2012, 3, 579–585, doi:10.3762/bjnano.3.67

Graphical Abstract
  • removal demonstrated here. Thickness dimensions can also be reduced to just a few tens of nanometers. This is critical for techniques in aberration corrected TEM such as atomically resolved EELS [30]. The higher imaging resolution of the HIM than the conventional SEM beam used in dual-beam FIB systems
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Published 08 Aug 2012

Nanoscaled alloy formation from self-assembled elemental Co nanoparticles on top of Pt films

  • Luyang Han,
  • Ulf Wiedwald,
  • Johannes Biskupek,
  • Kai Fauth,
  • Ute Kaiser and
  • Paul Ziemann

Beilstein J. Nanotechnol. 2011, 2, 473–485, doi:10.3762/bjnano.2.51

Graphical Abstract
  • , namely mechanical grinding and polishing followed by low angle Ar+-ion etching. Bright-field TEM and aberration corrected HRTEM images were taken on a FEI Titan TEM equipped with a Cs imaging corrector. Scanning TEM and energy dispersive X-ray spectra (EDX) were acquired on a FEI Titan equipped with an
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Published 23 Aug 2011

Preparation and characterization of supported magnetic nanoparticles prepared by reverse micelles

  • Ulf Wiedwald,
  • Luyang Han,
  • Johannes Biskupek,
  • Ute Kaiser and
  • Paul Ziemann

Beilstein J. Nanotechnol. 2010, 1, 24–47, doi:10.3762/bjnano.1.5

Graphical Abstract
  • ) the structure of the particles and (ii) to the chemical state. Advanced analytical tools such as aberration-corrected high-resolution transmission electron microscopy (HRTEM) and related techniques as well as X-ray photoelectron spectroscopy (XPS) give important additional information on the atomic
  • Pt segregation is probably overcompensated by the energy needed to form Fe3Pt from FePt. 2.4 Structure of FePt nanoparticles Since the magnetic hardness of FePt alloys strongly depends on the chemical order parameter, we investigated the structure of individual particles by aberration corrected HRTEM
  •  7 (b) and compares well with the SEM imaging in Figure 4. The structure as well as the crystallographic orientation relative to the beam direction of NPs was determined by aberration corrected HRTEM when the remaining substrate/embedding film thickness made them accessible. L10 ordering of 3 nm FePt
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Published 22 Nov 2010
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