Transmissionselektronenmikroskopie
Was kann ein Transmissionelektronenmikroskop?
Die Transmissionselektronenmikroskopie (TEM) ist eine vielseitig einsetzbare Charakterisierungsmethode von unterschiedlichsten Materialien mit höchster örtlicher und energetischer Auflösung. Die Proben werden von hochenergetischen Elektronen durchstrahlt und müssen hierzu Elektronentransparent sein, d.h. Dicken von unter 100 nm aufweisen. Das JEOL JEM-2200FS erlaubt die Abbildung mit konventioneller TEM oder der Rastertransmissionselektronenmikroskopie (STEM).
Die Öffnungsfehler der elektromagnetischen Linsen können im STEM-Modus mittels elektronenoptischem Korrektor der Firma CEOS korrigiert werden, um atomare Auflösung zu erreichen. Zusätzlich kann die Abbildung mit analytischen Methoden, wie der Elektronenenergieverlustspektroskopie (EELS) oder der energiedispersiven Röntgenspektroskopie (EDX) kombiniert werden.
In Abbildung 1 sind die wichtigsten Wechselwirkungsmechanismen des primären Elektronenstrahls mit der dünnen Probe dargestellt.
Abbildung 1: Schematische Darstellung der Wechselwirkungsmechanismen des primären Elektronenstrahls mit der dünnen Probe.
Weiterführende Informationen
Transmissionselektronenmikroskopie in ICAN
Elektronenbeugung
Die Beugung von Elektronen an der amorphen oder meist kristallinen Probe ermöglicht die Bestimmung der Kristallstruktur und –symmetrie.
Hochauflösende Abbildung
Unsere Geräte ermöglichen die hochauflösende (Raster)Transmissionselektronenmikroskopie (HR(S)TEM).
Tomographie
Mit Hilfe des im ICAN vorhandenen Tomographinadelhalters ist eine Drehung der Probe um 360° möglich, was die Bildung bestimmter Artefakte (missing wedge) in der anschließenden Rekonstruktion verhindert.
Analytische Elektronenmikroskopie
Wir bieten Ihnen die Energiedispersive Röntgenanalyse (EDX) und Elektronen Energieverlust Spektroskopie (EELS) an.
Unser Gerät: JEOL 2200FS
Für umfangreiche Analysen steht Ihnen unser TEM 2200FS der Firma JEOL zur Verfügung.
Ihr Ansprechpartner für das TEM:
ICAN - Interdisciplinary Center for Analytics on the Nanoscale
47057 Duisburg
Funktionen
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Wissenschaftliche/r Mitarbeiter/in, Center for Nanointegration Duisburg-Essen
Aktuelle Veranstaltungen
Keine aktuellen Veranstaltungen.
Vergangene Veranstaltungen (max. 10)
Keine vergangenen Veranstaltungen.
Die folgenden Publikationen sind in der Online-Universitätsbibliographie der Universität Duisburg-Essen verzeichnet. Weitere Informationen finden Sie gegebenenfalls auch auf den persönlichen Webseiten der Person.
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Correlating atomic-scale structural and compositional details of Ca-doped LaCO₃ perovskite nanoparticles with activity and stability towards the oxygen evolution reactionIn: Journal of Catalysis Jg. 438 (2024) 115697Online Volltext: dx.doi.org/ (Open Access)
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Effects of Dynamic Surface Transformation on the Activity and Stability of Mixed Co-Mn Cubic Spinel Oxides in the Oxygen Evolution Reaction in Alkaline MediaIn: Advanced Energy Materials (2024) in pressOnline Volltext: dx.doi.org/ (Open Access)
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Graphene self-folding : Evolution of free-standing few-layer graphene in plasma synthesisIn: Carbon Jg. 218 (2024) 118732Online Volltext: dx.doi.org/ (Open Access)
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Integrated In Situ Fabrication of CuO Nanorod-Decorated Polymer Membranes for the Catalytic Flow-Through Reduction of p-NitrophenolIn: ACS Applied Materials & Interfaces Jg. 16 (2024) Nr. 14, S. 17517 - 17530Online Volltext: dx.doi.org/
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Poly(4-Vinylpyridine)-Based Cubosomes : Synthesis, Assembly, and Loading CapabilitiesIn: Small Science (2024) in pressOnline Volltext: dx.doi.org/ (Open Access)
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Tunable Syngas Formation at Industrially Relevant Current Densities via CO₂ Electroreduction and Hydrogen Evolution over Ni and Fe-derived Catalysts obtained via One-Step Pyrolysis of Polybenzoxazine Based CompositesIn: Small Jg. 20 (2024) Nr. 23, 2305958Online Volltext: dx.doi.org/ (Open Access)
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Atomic-Scale Insights into Morphological, Structural, and Compositional Evolution of CoOOH during Oxygen Evolution ReactionIn: ACS Catalysis Jg. 13 (2023) Nr. 2, S. 1400 - 1411Online Volltext: dx.doi.org/
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Cobalt nickel boride as electrocatalyst for the oxidation of alcohols in alkaline mediaIn: JPhys Energy Jg. 5 (2023) Nr. 2, 024005Online Volltext: dx.doi.org/ (Open Access)
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Differentiating between Acidic and Basic Surface Hydroxyls on Metal Oxides by Fluoride Substitution : A Case Study on Blue TiO₂ from Laser Defect EngineeringIn: Angewandte Chemie International Edition Jg. 62 (2023) Nr. 12, e202213968Online Volltext: dx.doi.org/ (Open Access)
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Linking Composition, Structure and Thickness of CoOOH layers to Oxygen Evolution Reaction Activity by Correlative MicroscopyIn: Angewandte Chemie International Edition Jg. 62 (2023) Nr. 28, e202305982Online Volltext: dx.doi.org/ (Open Access)
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Machine Hammer Peening and Its Effect on the Surface Integrity of Arc-Sprayed WC-W₂C-FeCMnSi CoatingsIn: Coatings Jg. 13 (2023) Nr. 9, 1563Online Volltext: dx.doi.org/ (Open Access)
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Multicompartment Nanostructures as Templates for Multimetallic Hybrid MaterialsIn: Small Science Jg. 3 (2023) Nr. 9, 2300071Online Volltext: dx.doi.org/ (Open Access)
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3D atomic-scale imaging of mixed Co-Fe spinel oxide nanoparticles during oxygen evolution reactionIn: Nature Communications Jg. 13 (2022) Nr. 1, 179Online Volltext: dx.doi.org/ (Open Access)
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Beneficial Effects of Low Iron Contents on Cobalt‐Containing Spinel Catalysts in the Gas Phase 2‐Propanol OxidationIn: ChemCatChem Jg. 14 (2022) Nr. 18, e202200472Online Volltext: dx.doi.org/ (Open Access)
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Comparison of EUV Photomask Metrology Between CD-AFM and TEMIn: Nanomanufacturing and Metrology Jg. 5 (2022) S. 91 - 100Online Volltext: dx.doi.org/ (Open Access)
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Correction: Comparison of EUV Photomask Metrology Between CD-AFM and TEM (Nanomanufacturing and Metrology, (2022), 5, 2, (91-100), 10.1007/s41871-022-00124-y)In: Nanomanufacturing and Metrology Jg. 5 (2022) Nr. 4, S. 440Online Volltext: dx.doi.org/ (Open Access)
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Formic Acid-Assisted Selective Hydrogenolysis of 5-Hydroxymethylfurfural to 2,5-Dimethylfuran over Bifunctional Pd Nanoparticles Supported on N-Doped Mesoporous CarbonIn: Angewandte Chemie International Edition Jg. 60 (2021) Nr. 12, S. 6807 - 6815Online Volltext: dx.doi.org/ (Open Access)
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Influence of Nanoparticle Processing on the Thermoelectric Properties of (BiₓSb₁−X)₂Te₃ Ternary AlloysIn: ChemistryOpen Jg. 10 (2021) Nr. 2, S. 189 - 198Online Volltext: dx.doi.org/ (Open Access)
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Room temperature synthesized solid solution AuFe nanoparticles and their transformation into Au/Fe Janus nanocrystalsIn: Nanoscale Jg. 13 (2021) Nr. 23, S. 10402 - 10413Online Volltext: dx.doi.org/ (Open Access)
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The Effect of Water on the 2-Propanol Oxidation Activity of Co-Substituted LaFe₁−CoₓO₃ PerovskitesIn: Chemistry - A European Journal Jg. 27 (2021) Nr. 68: Special Issue: Contemporary Challenges in Catalysis, S. 17127 - 17144Online Volltext: dx.doi.org/ (Open Access)
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Cover Feature: Spray‐Flame‐Prepared LaCo1–xFexO3 Perovskite Nanoparticles as Active OER Catalysts : Influence of Fe Content and Low‐Temperature Heating (ChemElectroChem 12/2020)In: ChemElectroChem Jg. 7 (2020) Nr. 12, S. 2495 - 2495Online Volltext: dx.doi.org/ (Open Access)
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One-step synthesis of carbon-supported electrocatalystsIn: Beilstein Journal of Nanotechnology Jg. 11 (2020) S. 1419 - 1431Online Volltext: dx.doi.org/ (Open Access)
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Particle Size Distributions for Cellulose Nanocrystals Measured by Transmission Electron Microscopy : An Interlaboratory ComparisonIn: Analytical Chemistry Jg. 92 (2020) Nr. 19, S. 13434 - 13442Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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Spray-Flame-Prepared LaCo₁–ₓFeₓO₃ Perovskite Nanoparticles as Active OER Catalysts : Influence of Fe Content and Low-Temperature HeatingIn: ChemElectroChem Jg. 7 (2020) Nr. 12, S. 2564 - 2574Online Volltext: dx.doi.org/ (Open Access)
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Terpolymer Multicompartment Nanofibers as Templates for Hybrid Pt Double HelicesIn: ACS Applied Materials & Interfaces Jg. 12 (2020) Nr. 35, S. 39586 - 39594Online Volltext: dx.doi.org/
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Vesicular Polymer Hexosomes Exhibit Topological DefectsIn: Journal of the American Chemical Society: JACS Jg. 142 (2020) Nr. 25, S. 10989 - 10995Online Volltext: dx.doi.org/
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Characterization and reactivity of charcoal from high temperature pyrolysis (800–1600 °C)In: Fuel Jg. 235 (2019) S. 1544 - 1554Online Volltext: dx.doi.org/ (Open Access)
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The effect of feedstock origin and temperature on the structure and reactivity of char from pyrolysis at 1300–2800 °CIn: Fuel Jg. 235 (2019) S. 306 - 316Online Volltext: dx.doi.org/ (Open Access)
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Magnetite-Gold nanohybrids as ideal all-in-one platforms for theranosticsIn: Scientific Reports Jg. 8 (2018) S. 11295Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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Adjusting the catalytic properties of cobalt ferrite nanoparticles by pulsed laser fragmentation in water with defined energy doseIn: Scientific Reports Jg. 7 (2017) Nr. 1, S. 13161Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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Ammonia decomposition and synthesis over multinary magnesioferrites : promotional effect of Ga on Fe catalysts for the decomposition reactionIn: ChemCatChem Jg. 9 (2017) Nr. 4, S. 659 - 671Online Volltext: dx.doi.org/
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Synthesis of Sb2Se3 and Bi2Se3 Nanoparticles in Ionic Liquids at Low Temperatures and Solid State Structure of [C4C1Im]3[BiCl6]In: Zeitschrift für Anorganische und Allgemeine Chemie (ZAAC) Jg. 643 (2017) Nr. 1, Special Issue: Reactions in Ionic Liquids, S. 60 - 68Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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Structural anomaly in the high-entropy alloy ZrNbTiTaHfIn: Intermetallics Jg. 68 (2016) S. 11 - 15Online Volltext: dx.doi.org/
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The role of metastable LPSO building block clusters in phase transformations of an Mg-Y-Zn alloyIn: Acta Materialia Jg. 112 (2016) S. 171 - 183Online Volltext: dx.doi.org/
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Comprehensive model of metadislocation movement in Al₁₃Co₄In: Scripta Materialia Jg. 98 (2015) S. 24 - 27Online Volltext: dx.doi.org/
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Development and characterisation of a new line width reference materialIn: Measurement Science and Technology Jg. 26 (2015) Nr. 11, 115006Online Volltext: dx.doi.org/
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Plastic deformation properties of Zr-Nb-Ti-Ta-Hf high-entropy alloysIn: Philosophical Magazine Jg. 95 (2015) Nr. 11, S. 1221 - 1232Online Volltext: dx.doi.org/ (Open Access)
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Hexagonal High-entropy AlloysIn: Materials Research Letters Jg. 3 (2014) Nr. 1, S. 1 - 6Online Volltext: dx.doi.org/ (Open Access)
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On the stability of metadislocations with 16 associated phason planesIn: Intermetallics Jg. 53 (2014) S. 187 - 191Online Volltext: dx.doi.org/
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Periodic cation segregation in Cs0.44[Nb2.54W2.46O14] Quantified by High-Resolution Scanning Transmission Electron MicroscopyIn: Microscopy and Microanalysis Jg. 20 (2014) Nr. 5, S. 1453 - 1462Online Volltext: dx.doi.org/
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Self-assembly of biaxial discorectangular lead carbonate nanosheets into stacked ribbons studied by SAXS and HAADF-STEM tomographic tilt seriesIn: Soft Matter Jg. 10 (2014) Nr. 47, S. 9511 - 9522Online Volltext: dx.doi.org/ (Open Access)
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Studies of local structural distortions in strained ultrathin BaTiOIn: Microscopy and Microanalysis Jg. 20 (2014) Nr. 3, S. 740 - 747Online Volltext: dx.doi.org/
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From conformal overgrowth to lateral growth of indium arsenide nano structures on silicon substrates by MOVPEIn: Journal of Crystal Growth Jg. 370 (2013) S. 141 - 145Online Volltext: dx.doi.org/
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Orientation of well-dispersed multiwalled carbon nanotubes in melt-spun polymer fibers and its impact on the formation of the semicrystalline polymer structure : A combined wide-angle X-ray scattering and electron tomography studyIn: Macromolecules Jg. 46 (2013) Nr. 14, S. 5604 - 5613Online Volltext: dx.doi.org/
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Reference nano-dimensional metrology by scanning transmission electron microscopyIn: Measurement Science and Technology Jg. 24 (2013) Nr. 8, 085001Online Volltext: dx.doi.org/
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Spatial resolution and radiation damage in quantitative high-resolution STEM-EEL spectroscopy in oxidesIn: Micron Jg. 43 (2012) Nr. 4, S. 532 - 537Online Volltext: dx.doi.org/
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Inorganic WS2 nanotubes revealed atom by atom using ultra-high-resolution transmission electron microscopyIn: Applied Physics A: Materials Science and Processing Jg. 96 (2009) Nr. 2, S. 343 - 348Online Volltext: dx.doi.org/
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Intermixing and charge neutrality at DyScO3/SrTiO3 interfacesIn: Acta Materialia Jg. 57 (2009) Nr. 11, S. 3192 - 3198Online Volltext: dx.doi.org/
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StripeSTEM, a technique for the isochronous acquisition of high angle annular dark-field images and monolayer resolved electron energy loss spectraIn: Ultramicroscopy Jg. 109 (2009) Nr. 12, S. 1447 - 1452Online Volltext: dx.doi.org/
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The influence of Se doping upon the phase change characteristics of GeSbIn: Solid State Sciences Jg. 11 (2009) Nr. 3, S. 683 - 687Online Volltext: dx.doi.org/
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Complex inorganic nanomaterials by block terpolymer templatingIn: ACS National Meeting / American Chemical Society Jg. 258 (2019) Nr. 727,
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The ultramicrotome as a tool for the preparation of ultra-thin samples for TEM investigationsIn: ICAN Notes Jg. 4 (2021)Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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High-Angle Annular Dark-Field (HAADF) ContrastIn: ICAN Notes Jg. 2 (2020)Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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The matrix effect - A challenge for quantitative secondary ion mass spectrometryIn: ICAN Notes Jg. 1 (2020)Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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Neue Erkenntnisse zur Keimbildung bei GJS
Österreichische Gießereitagung ; Gurten, 27.-28. April 2017,Gurten, Österreich (2017)