Michael Seifner

electron microscopist | in-situ investigations | multicomponent nanostructure design | nanophotonics | senior scientist @tu_wien

[Michael Seifner @seifner_m]

Direct visualization of optical modes in a topology-optimized silicon bowtie nanocavity using multi-orientation #EELS.

Read more about our study in @NanoLetters

https://t.co/ORITNhJnMz

#Nanocavities #ElectronMicroscopy #TEM #Photonics #QuantumConfinement #Tomography

[Michael Seifner @seifner_m]

@RambaranMark Congrats, Mark!

[Michael Seifner @seifner_m]

@UnterlassLab @Bismarck_PaCE Congrats, Elias!

[Michael Seifner @seifner_m]

You can count on support from various experts in groups at DTU Nanolab, NanoPhoton – Center for Nanophotonics, and DTU Physics to achieve the project and personal goals.

[Michael Seifner @seifner_m]

Please RT: Are you interested in imaging light-induced charge carrier accumulation at semiconductor nanoparticle crystal facets using advanced electron microscopy?

The postdoc position is fully funded by the @VILLUMFONDEN and will be hosted @DTUNanolab.

https://t.co/GLpjKgnHUg

[Michael Seifner @seifner_m]

@VILLUMFONDEN @DTUNanolab We aim to image light-induced charge carrier accumulation at semiconductor nanoparticle crystal facets using advanced electron microscopy techniques. A successful implementation will require integrating a light source in DTU Nanolab’s state-of-the-art electron microscopes.

[Michael Seifner @seifner_m]

@DTUNanolab A successful implementation of this project will help better understand the fundamental processes involved in photocatalytic reactions.

[Michael Seifner @seifner_m]

I want to use this opportunity to thank @VILLUMFONDEN for giving me the chance to explore fundamental processes in photocatalysis.

I will soon open a postdoc position for this interdisciplinary project. Please feel free to contact me if you are interested!

[Villum Fonden @VILLUMFONDEN]

Glas, der heler sig selv. Batterier, du skal lytte til. Årets forskningseksperimenter afsløret: 49 forskere fra seks danske universiteter får 97 mio. kr. gennem Experiment-programmet til vilde idéer.

#VillumExperiment #science #dkforsk #krølledehjerner

https://t.co/WtKL6Gp8me

[Michael Seifner @seifner_m]

@DTUNanolab In particular, the goal is to develop a setup capable of imaging the accumulation of the generated charge carriers at specific crystal facets at an atomic scale using various advanced microscopy techniques.

[Bernhard C. Bayer @nanobayer]

Great to have had Michael Seifner @seifner_m from @DTUNanolab visiting for invited seminar at @tu_wien! Thanks for great talk about his exciting work on Fundamental Aspects of Catalysis Enlightened by In-Situ Studies in the Environmental Transmission Electron Microscope! 🎓👍😃

[Michael Seifner @seifner_m]

@nanobayer @DTUNanolab @tu_wien It was a pleasure visiting your lab. Thank you very much for the invitation, Bernhard!

[Michael Seifner @seifner_m]

Are you participating in #EUROMAT2023 and excited about mapping extremely confined electric fields in topology-optimized photonic cavities using electron microscopy? I will be giving a talk tomorrow at 10:30 am (symposium D01). See you there!

@FEMS_EU @DGM_eV #EM23 #EuroMat2023

[Raffaella Buonsanti @lnce_epfl]

Not one, not two, but three positions for tenure-track assistant professors @EPFL_CHEM_Tweet in Physical Chemistry, Catalysis and Green Synthesis/Bioengineering. Looking forward to meeting all candidates and welcoming our new colleagues! More info here: https://t.co/zGA1XqJFrN

[Michael Seifner @seifner_m]

The subsequent GaP nucleation at the Cu3P phase was shown in a previous tweet.

[Michael Seifner @seifner_m]

Direct #electronmicroscopy observation of the Ag phase's #crystalsurface alterations after adding Ga and P precursors to Ag-Cu3P multicomponent #nanoparticles

Read more about our study in @acsnano

https://t.co/7zLaltmtlv

#chemtwitter #Science #chemistry #RealTimeChem #nano

[Advanced Portfolio @AdvPortfolio]

This is one of a few videos in which researchers study the growth of gallium phosphide (GaP) nanowires using Cu seed particles inside an environmental transmission electron microscope.

@seifner_m @lunduniversity

Find out more and access the other 📽: https://t.co/ofomqivAVJ

[Michael Seifner @seifner_m]

@Ella_Maru @AdvSciNews Understanding such processes at an atomic level is critical for gaining control over the growth process by identifying potential ways to manipulate the crystal growth.

[Michael Seifner @seifner_m]

In situ transmission #electronmicroscopy investigations of GaP #nanocrystal growth using Cu-based seed particles.

Read more about our study in Small Structures @AdvSciNews.

Source: https://t.co/VFS7YzgGiT

#Nano #Microscopy #chemistry #RealTimeChem #chemtwitter #Science

[Michael Seifner @seifner_m]

@Ella_Maru @AdvSciNews In general, using different seed particles is interesting for controlling crystal properties including morphology and crystal structure. We show that accumulating Ga in the Cu-based seed particle leads to the formation of an additional liquid phase that initiates crystal kinking.