We are interested in the physico-chemical properties of nanoscale structures. Currently or focus is on metal and semiconducting clusters and on carbon-based nanometerials (single-walled carbon nanotubes and fullerenes).
We are investigating mass-selected clusters and nanoparticles isolated in the gas-phase by means of ion traps (like a Penning trap in the FTMS setup or Paul traps in the TIED and TILIF experiments) and dispersed in solution and supported on surfaces. Our extensive work on single-walled carbon nanotubes (SWNTs) ranges from the synthesis (laser-vaporization and CVD) to separation (in terms of length, diameter and electronic structure) and characterization by means of absorption and fluorescence and Raman spectroscopy. We are also engaged in the application of carbon nanotubes in first-principle nanoscale electronic circuits.
Group members
Senior Scientists:
Guest scientist:
PhD-Candidates:
Technician:
FTMS (Fourier-Transform Mass Spectrometry)
Contact: PD Dr.Oliver Hampe
Research Topics:
· Ion Chemistry of Transitions Metal Clusters and Metal-organic Compounds
· Multianions: Generation, Reactivity and Spectroscopy
· Electrospray Mass Spectrometry of Inorganic Clusters and Supramolecular Species
TIED (Trapped Ion Electron Diffraction)
Contact: PD Dr. Detlef Schooß
Research Topics:
· Structurs of Neat and Mixed Metal Clusters
· Phase Transitions of Metal Clusters
TLIF (Trapped Ion Laser Induced Fuorescence)
Contact: PD Dr. Detlef Schooß
Research Topics:
· Fluorescence of isolated dye and metal complex ions, semiconducting clusters and quantum dots
· Influence of solvation on fluorescent properies of fluorophores
Synthesis of Carbon Nanotubes
Contact: Dr. Frank Hennrich
Research Topics:
· PLV (Pulsed Laser Vaporization) Methods
· CVD (Chemical Vapor Deposition) Methods
Spectroscopy on Carbon Nanotubes
Contact: Dr. Sergei Lebedkin
Research Topics:
· Photoluminescence of Carbon Nanotubes (as an ensemble oder individual)
· Confocal Raman Spectroscopy
Separation on Carbon Nanotubes
Contact: Dr. Frank Hennrich
Research Topics:
· Purification of Carbon Nanotubes
· Separation of SWNTs based on their physical properties and geometrical size
Synthesis and Characterization of Nano-Carbon Materials
Contact: Dr. Sharali Malik
Research Topics:
· Graphene and FLG (few layer graphene) Materials
· Properties of SWNTs and MWNTs
