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Optical Studies and Transmission Electron Microscopy of HgCdTe Quantum Well Heterostructures for Very Long Wavelength Lasers.
Rumyantsev, Vladimir V; Razova, Anna A; Bovkun, Leonid S; Tatarskiy, Dmitriy A; Mikhailovskii, Vladimir Y; Zholudev, Maksim S; Ikonnikov, Anton V; Uaman Svetikova, Tatyana A; Maremyanin, Kirill V; Utochkin, Vladimir V; Fadeev, Mikhail A; Remesnik, Vladimir G; Aleshkin, Vladimir Y; Mikhailov, Nikolay N; Dvoretsky, Sergey A; Potemski, Marek; Orlita, Milan; Gavrilenko, Vladimir I; Morozov, Sergey V.
Afiliação
  • Rumyantsev VV; Institute for Physics of Microstructures of RAS, 603950 Nizhny Novgorod, Russia.
  • Razova AA; Faculty of Radiophysics, Lobachevsky State University, 603950 Nizhny Novgorod, Russia.
  • Bovkun LS; Institute for Physics of Microstructures of RAS, 603950 Nizhny Novgorod, Russia.
  • Tatarskiy DA; Faculty of Radiophysics, Lobachevsky State University, 603950 Nizhny Novgorod, Russia.
  • Mikhailovskii VY; LNCMI-EMFL, CNRS UPR3228, University Grenoble Alpes, University Toulouse, University Toulouse 3, INSA-T, 38042 Grenoble, France.
  • Zholudev MS; Institute for Physics of Microstructures of RAS, 603950 Nizhny Novgorod, Russia.
  • Ikonnikov AV; Faculty of Physics, Lobachevsky State University, 603950 Nizhny Novgorod, Russia.
  • Uaman Svetikova TA; Resource Center for Nanotechnology, Saint-Petersburg University, 199034 Saint-Petersburg, Russia.
  • Maremyanin KV; Institute for Physics of Microstructures of RAS, 603950 Nizhny Novgorod, Russia.
  • Utochkin VV; Faculty of Radiophysics, Lobachevsky State University, 603950 Nizhny Novgorod, Russia.
  • Fadeev MA; Faculty of Physics, Lomonosov Moscow State University, 119991 Moscow, Russia.
  • Remesnik VG; Faculty of Physics, Lomonosov Moscow State University, 119991 Moscow, Russia.
  • Aleshkin VY; Institute for Physics of Microstructures of RAS, 603950 Nizhny Novgorod, Russia.
  • Mikhailov NN; Faculty of Radiophysics, Lobachevsky State University, 603950 Nizhny Novgorod, Russia.
  • Dvoretsky SA; Institute for Physics of Microstructures of RAS, 603950 Nizhny Novgorod, Russia.
  • Potemski M; Institute for Physics of Microstructures of RAS, 603950 Nizhny Novgorod, Russia.
  • Orlita M; Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia.
  • Gavrilenko VI; Institute for Physics of Microstructures of RAS, 603950 Nizhny Novgorod, Russia.
  • Morozov SV; Advanced School of General and Applied Physics, Lobachevsky State University, 603950 Nizhny Novgorod, Russia.
Nanomaterials (Basel) ; 11(7)2021 Jul 19.
Article em En | MEDLINE | ID: mdl-34361241
ABSTRACT
HgTe/CdHgTe quantum well (QW) heterostructures have attracted a lot of interest recently due to insights they provided towards the physics of topological insulators and massless Dirac fermions. Our work focuses on HgCdTe QWs with the energy spectrum close to the graphene-like relativistic dispersion that is supposed to suppress the non-radiative Auger recombination. We combine various methods such as photoconductivity, photoluminescence and magneto-optical measurements as well as transmission electron microscopy to retrofit growth parameters in multi-QW waveguide structures, designed for long wavelengths lasing in the range of 10-22 µm. The results reveal that the attainable operating temperatures and wavelengths are strongly dependent on Cd content in the QW, since it alters the dominating recombination mechanism of the carriers.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2021 Tipo de documento: Article
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2021 Tipo de documento: Article