INT | Research Group Kübel

Electron Microscopy and Spectroscopy Laboratory

The Electron Microscopy and Spectroscopy Group (EMSG) focuses on advanced structural, compositional and functional characterization providing a direct correlation between synthesis/processing and properties/functionality in materials research.
High-end structural and compositional characterization is one of the essential requirements for advanced materials development; the experimental basis for a systematic understanding of materials and modelling. Electron microscopy is one of the most versatile and powerful tools to provide this basis by quantitative characterization of the atomic, nanometer and micron scale structure and composition. Moreover, in-situ experiments provide a direct correlation between structural changes, materials properties and functional behavior.
In addition to using state-of-the-art electron microscopy techniques for materials characterization, we develop microscopy techniques to provide answers to specific research problems in materials and physical sciences.

 

EMSG in 2019

News & Publications

Themis 300FEI Company
Themis 300 Installation

Installation of the Themis 300 probe corrected TEM started in July and should be completed in Q4/2020.

Themis 300 Details
Themis-ZDi Wang, KIT
Themis-Z Installation

Installation of the Themis-Z double corrected analytical TEM started in January and should be completed end of July.

Themis-Z Details
EMSI Excellence in MicroscopyEMSI
Excellence in Microscopy Award

Congratulations to Dr. Kiran Chakravadhanula for receiving the 2020 Award on Excellence in Microscopy by the Electron Microscopy Socienty of India for his work at KIT.


Method Development

We are optimizing and developing new microscopy methods to address emerging structural and functional questions.
In-situ TEM Atmosphere Holder Protochips Inc.
In-situ TEM

Heating, biasing, electro-chemistry, gas environment, mechanical deformation

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4D-STEM Xiaoke Mu, KIT
4D-STEM

Automated crystal orientaton mapping

Pair distrubution function mapping

Differential phase contrast

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Electron Tomography in Catalysis Wu Wang, KIT
Electron Tomography

Quantitative 3D nanoscale and microscale analysis

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Materials Research

We are applying advanced electron microscopy techniques such as (S)TEM, EELS, EDX, NBED, tomography and FIB to characterize a variety of materials for different application areas.
Battery Interfaces Christian Kübel, KIT
Batteries

Understanding cathode and andode nanostructure

Role of interface for battery performance

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Catalysis Christian Kübel, KIT
Catalysis

Atomic structure of the active catalytic center

Metal-Support Interaction

Nano and micro scale morphology

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Magnetic Materials Di Wang & Saleh Gorji, KIT
Magnetic Materials

Atomic structure and chemistry

Magnetic domain structure

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Metallic Glasses Teaser Xiaoke Mu, KIT
Metallic Glasses

Bulk metallic & nano glasses

Local structural & compositional analysis

Shear band structure

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Nanocrystalline Metals Christian Kübel, KIT
Nanocrystalline Metals

Quantitative structural description of nanocrystalline metals

Mechanical deformation

Thermal evolution

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Compositionally complex alloys Lakshmi Mantha, KIT
Compositionally Complex Alloys

Nano- & Microstructure Characterization

In-situ heating and in-situ mechanical evolution

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High Entropy Oxides Kai Wang, KIT
High Entropy Oxides

Atomic structure & chemistry

Electron structure

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Multiferroic Thin Films Di Wang & Saleh Gorji, KIT
Multiferroic Thin Films

Atomic structure and chemistry at interfaces

Ferroelectric & magnetic structure

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Self-Assembly of Janus Type Clusters Wei Wang, Nankai University
Self-Assembled Nanomaterials

Low-dose TEM & electron tomography characterization of complex hybrid materials.

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4D-STEM P3HT/PCBM Microscopy
Organic Photovoltaics