Excitonic luminescence, X-ray analysis and local band structure of chlorine intercalated 2H- and 3R-MoS2 polytypes
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ANGHEL, Sergiu, CHUMAKOV, Yurii, COLEV, Andrei, KRAVTSOV, Victor, KULYUK, Leonid, MAMALIGA, Cristina, MITIOGLU, Anatolie, SUSHKEVICH, Konstantin, VOLODINA, Galina. Excitonic luminescence, X-ray analysis and local band structure of chlorine intercalated 2H- and 3R-MoS2 polytypes. In: IFMBE Proceedings: 3rd International Conference on Nanotechnologies and Biomedical Engineering, ICNBME 2015, Ed. 3, 23-26 septembrie 2015, Chişinău. Springer, 2016, Editia 3, Vol.55, pp. 192-195. ISBN 978-981287735-2. ISSN 16800737. DOI: https://doi.org/10.1007/978-981-287-736-9_48
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IFMBE Proceedings
Editia 3, Vol.55, 2016
Conferința "International Conference on Nanotechnologies and Biomedical Engineering"
3, Chişinău, Moldova, 23-26 septembrie 2015

Excitonic luminescence, X-ray analysis and local band structure of chlorine intercalated 2H- and 3R-MoS2 polytypes

DOI:https://doi.org/10.1007/978-981-287-736-9_48

Pag. 192-195

Anghel Sergiu1, Chumakov Yurii1, Colev Andrei1, Kravtsov Victor1, Kulyuk Leonid1, Mamaliga Cristina1, Mitioglu Anatolie12, Sushkevich Konstantin3, Volodina Galina1
 
1 Institute of Applied Physics, Academy of Sciences of Moldova,
2 Laboratoire National des Champs Magnétiques Intenses, Toulouse,
3 Moldova State University
 
 
Disponibil în IBN: 19 iunie 2022


Rezumat

Photoluminescence and X-ray diffraction are used to investigate 2H and 3R polytypes of MoS2 layered crystals intercalated with Cl2 molecules. The spectral structure of the observed bound excitons emission is individual for each polytype, that can be used for unambiguous identification of the 2H and 3R polytypes. The DFT band structure calculations have been done for three molecular layers of 2H-MoS2 and 3R-MoS2 polytypes without and with intercalation of Cl2 molecules. The spectroscopic experimental results confirmed theoretical calculations performed for both cases and it has been demonstrated that halogen intercalation completely changes the local band structure of 2H- and 3R-MoS2 polytypes.

Cuvinte-cheie
Bound excitons, Halogen molecules, Luminescence, Molybdenum disulphide, Polytype