New publication: "Temperature dependent ambipolar charge carrier mobility in large crystal hybrid halide perovskite thin films", Alexander Biewald, Nadja Giesbrecht, Thomas Bein, Pablo Docampo, Achin Hartschuh and Richard Ciesielski

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New publication: "Tip-Enhanced Spectroscopy and Imaging of Carbon Nanomaterials", by Ado Jorio, Luiz Gustavo Cançado, Sebastian Heeg, Lukas Novotny and Achim Hartschuh (Dedicated to the Memory of Professor Mildred S Dresselhaus)

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New publication: "Freely Suspended, van der Waals Bound Organic Nanometer‐Thin Functional Films: Mechanical and Electronic Characterization", Lilian S. Schaffroth, Jakob Lenz, Veit Giegold, Maximilian Kögl, Achim Hartschuh and R. Thomas Weitz

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New Publication: "Efficient Hotspot Switching in Plasmonic Nanoantennas using Phase-shaped Laser Pulses controlled by Neural Networks", Alberto Comin and Achim Hartschuh,

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Universitaet Muenchen
Department Chemie
Butenandtstr. 5-11 (Haus E, Gerhard-Ertl-Gebaeude)
81377 Muenchen

Phone: +49 89 2180 77515
Mail: Prof. A. Hartschuh
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Time-resolved spectroscopy

Optical excitation of Single-Walled Carbon Nanotubes generates excitons. Exciton decay dynamics are of major importance both for our understanding of the fundamental physics and for all light-based device applications of these 1D quantum systems.

To avoid the major disadvantages of ensemble measurements, namely overlapping contributions from different tube species and averaging over tubes of the same species but with different individual properties (e.g. defect concentration), single nanotube experiments are required.

Setup for time-resolved photoluminescence spectroscopy


Time-dependent photoluminescence intensity for three different
nanotubes showing the decay dynamics of the excited state. The
corresponding lifetimes are derived from fitting with a mono-exponential
decay function.