MAPEX Core Facility for Materials Analytics

Marco Schowalter about the Titan 80-300 ST:
"We can image the atomic structures of materials, exploring how this leads to the functionality of devices ranging from light-emitting diodes (LEDs) to catalysts and high-power transistors."
© Patrick Pollmeier, Universität Bremen
Lars Robben about the Stadi MP:
"X-ray diffraction allows us to examine the structure of materials. With this knowledge, the structural origins of material properties can be identified and tuned."
© Patrick Pollmeier, Universität Bremen
Isabell Grothaus about the CD Spectrometer:
"We exploit the method to monitor structural changes in proteins upon changes in their environment, introduction of mutations or alterations in post-translational modifications."
© Patrick Pollmeier, Universität Bremen
Marcos Toro about the AFM:
"Atomic force microscopy lets us visualize surfaces at the atomic level, providing detailed topographical maps that reveal nanoscale features essential for cutting-edge research."
© Patrick Pollmeier, Universität Bremen
Wolf-Achim Kahl about the Xradia 520 Versa:
"3D insights into mineral textures help me to understand how reactive processes in the ocean crust influence the geochemistry of the rocks and ocean, and even the development of microbial habitats."
© Patrick Pollmeier, Universität Bremen
Florian Krause about the Titan Spectra 300:
"We can uncover the precise structure of materials down to the range of picometers. This allows us to reveal details like electric fields inside nanostructures on the sub-atomic scale."
© Patrick Pollmeier, Universität Bremen
Ella Schmidt about the D8 Advance X-ray Diffractometer:
"We unravel past climate histories, investigate the absorption properties of porous materials, and explore the structural complexities of nanoparticles."
© Patrick Pollmeier, Universität Bremen
Jon-Olaf Krisponeit about the Low-energy Electron Microscope:
"I can visualize surfaces in real-time while growing structures or films on them. This allows me to to study surface phenomena and thin films with great clarity."
© Patrick Pollmeier, Universität Bremen
Jens Falta about the coupled STM, XPS, and LEED System:
"We can probe the elemental composition, chemical states, and structure of surfaces. This offers insights critical for the development of advanced materials and coatings."
© Patrick Pollmeier, Universität Bremen
Mangir Murshed about the LabRam ARAMIS:
“Using the microfocus Raman spectroscopy, I analyze the fingerprints of molecules and crystals, revealing their chemical composition and structural details.”
© Patrick Pollmeier, Universität Bremen
Marcos Toro about the coupled Raman-VSI Spectrometer:
"Coupling two optical methods for the analysis of surfaces allows us to study the molecular composition and the topological features of a surface in one instrument."
© Patrick Pollmeier, Universität Bremen

We work together to push materials analytics beyond the state of the art in five investigation areas, coupling experimental characterization with materials modelling and simulation.

We use X-rays to non-destructively inspect the three-dimensional distribution of matter inside the object of investigation.

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We investigate our samples using high-energy electron beams to obtain images with resolution down to the atom scale.

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We combine microscopic and spectroscopic techniques to monitor processes at materials surfaces.

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vertical Scanning Imaging and superimposed Raman Shift

We perform in-situ and real-time chemical, electronic and optical characterization of materials under different conditions, e.g. to identify and map different phases.

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We support structure investigations of materials from crystalline nanomaterials to macroscopic single crystals at ambient and non-ambient conditions.

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We develop and apply computational methods from quantum mechanics to continuum theories to design and understand new materials and processes.

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Electron Microscopy| 01.11.2024

Characterization of structure and mixing in nanoparticle hetero-aggregates using convolutional neural networks: 3D-reconstruction versus 2D-projection

Christoph Mahr, Jakob Stahl, Beeke Gerken, Florian F. Krause, Marco Schowalter, Tim Grieb, Lutz M?dler, Andreas Rosenauer

Ultramicroscopy 265 (2024): 114020

https://doi.org/10.1016/j.ultramic.2024.114020

Structural and chemical characterization of nanomaterials provides important information for…

X-Ray Diffraction| Electron Microscopy| 24.09.2024

Photo Electrocatalytic Water Splitting Using Sn Doped In?S? Homologous Series Synthesized in Oxygen Deficient Flame

Suman Pokhrel, Jakob Stahl, Lizhuo Wang, Rui Tang, Haoyue Sun, Malte Schalk, Marco Schowalter, Andreas Rosenauer, Jun Huang, Johannes Kiefer, Johannes Birkenstock, Lutz M?dler

Advanced Functional Materials (2024): 2411521

https://doi.org/10.1002/adfm.202411521

The innovative development of…

Electron Microscopy| 05.09.2024

Composition and strain of the pseudomorphic α-phase intermediate layer at the Ga?O?/Al?O? interface

M. Schowalter, A. Karg, M. Alonso-Orts, J. A. Bich, S. Raghuvansy, M. S. Williams, F. F. Krause, T. Grieb, C. Mahr, T. Mehrtens, P. Vogt, A. Rosenauer, M. Eickhoff

APL Materials 12 (2024): 091104

https://doi.org/10.1063/5.0226857

We investigate the composition of α-phase intermediate layers at…

Instrument manager

Dr. Wilken Seemann

University of Bremen
IW3, Room 2190
Am Biologischen Garten 2
28359 Bremen
Phone: +49 421 218 64954
E-Mail: Instrument Manager

Science manager

Dr. Hanna Lührs

University of Bremen
IW3-Building, Room 2230
Am Biologischen Garten 2
28359 Bremen
Phone: +49 421 218 64580
E-Mail: MAPEX

Scientific coordinator

Prof. Dr.-Ing. Lucio Colombi Ciacchi

University of Bremen
TAB-Building, Room 3.30
Am Fallturm 1
28359 Bremen
Phone: +49 421 218 64570
E-Mail: Scientific coordinator

MAPEX-CF is part of the MAPEX Center For Materials and Processes of the University of Bremen.

MAPEX-CF is supported by the Deutsche Forschungsgemeinschaft and is listed under the RIsources portal.

Find analytical equipment available in the MAPEX groups using our Instrument Database.

Marco Schowalter about the Titan 80-300 ST:

Lars Robben about the Stadi MP:

Isabell Grothaus about the CD Spectrometer:

Marcos Toro about the AFM:

Wolf-Achim Kahl about the Xradia 520 Versa:

Florian Krause about the Titan Spectra 300:

Ella Schmidt about the D8 Advance X-ray Diffractometer:

Jon-Olaf Krisponeit about the Low-energy Electron Microscope:

Jens Falta about the coupled STM, XPS, and LEED System:

Mangir Murshed about the LabRam ARAMIS:

Marcos Toro about the coupled Raman-VSI Spectrometer:

More than a tool box:

3D Materials Analytics

Electron Microscopy

Surface Analytics

Spectroscopy

X-ray Diffraction

Materials Modeling

Research Highlights and News

Characterization of structure and mixing in nanoparticle hetero-aggregates using convolutional neural networks: 3D-reconstruction versus 2D-projection

Photo Electrocatalytic Water Splitting Using Sn Doped In?S? Homologous Series Synthesized in Oxygen Deficient Flame

Composition and strain of the pseudomorphic α-phase intermediate layer at the Ga?O?/Al?O? interface

Instrument manager

Science manager

Scientific coordinator