The ultrafast study of tungsten disulfide nanotubes
Maksim I. Paukov1, Anastasia E. Goldt2, Gennady A. Komandin3, Alexey A. Melnikov4, Kirill I. Zaitsev3, Albert G. Nasibulin1, Valentyn Volkov1, Maria G. Burdanova1,3,5; 1Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology, Dolgoprudny, Russia; 2Center for Photonic Science and Engineering, Skolkovo Institute of Science and Technology, Moscow, Russia; 3Institute of General Physics RAS, Moscow, Russia, 4Insititute of Spectroscopy RAS, Troitsk, Russia, 5Institute of Solid State Physics, Chernogolovka, Russia
Abstract
In the current study we reveal the effects of presence of various quasiparticles on the optical and conducting properties of tungsten disulfide nanotubes (WS2NTs). These features are studied via transient absorption and optical pump-terahertz probe spectroscopies. which allow to investigate nanomaterials intactly. Moreover, these techniques provide us with the information on the temporal evolution of free charges and bound states of charges created under photoexcitation. We determine the lifetimes of the emerging processes in the visible and terahertz range, as well as other characteristics, which might be useful in applications of quasi one-dimensional transition metal dichalcogenides.
Speaker
Paukov Maksim
MIPT
Russia
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