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Stabilization of the Nano-Sized 1T Phase through Rhenium Doping in the Metal-Organic CVD MoS2 Films.
Romanov, Roman I; Zabrosaev, Ivan V; Kozodaev, Maxim G; Yakubovsky, Dmitry I; Tatmyshevskiy, Mikhail K; Timofeev, Aleksey A; Doroshina, Natalia V; Novikov, Sergey M; Volkov, Valentyn S; Markeev, Andrey M.
Afiliación
  • Romanov RI; Moscow Institute of Physics and Technology (National Research University), Institutskii per. 9, Dolgoprudny 141701, Moscow region, Russia.
  • Zabrosaev IV; Moscow Institute of Physics and Technology (National Research University), Institutskii per. 9, Dolgoprudny 141701, Moscow region, Russia.
  • Kozodaev MG; Moscow Institute of Physics and Technology (National Research University), Institutskii per. 9, Dolgoprudny 141701, Moscow region, Russia.
  • Yakubovsky DI; Center for Photonics & 2D Materials, Moscow Institute of Physics and Technology (National Research University), Dolgoprudny 141700, Russia.
  • Tatmyshevskiy MK; Center for Photonics & 2D Materials, Moscow Institute of Physics and Technology (National Research University), Dolgoprudny 141700, Russia.
  • Timofeev AA; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoe sh., 31, Moscow 115409, Russia.
  • Doroshina NV; Center for Photonics & 2D Materials, Moscow Institute of Physics and Technology (National Research University), Dolgoprudny 141700, Russia.
  • Novikov SM; Center for Photonics & 2D Materials, Moscow Institute of Physics and Technology (National Research University), Dolgoprudny 141700, Russia.
  • Volkov VS; Center for Photonics & 2D Materials, Moscow Institute of Physics and Technology (National Research University), Dolgoprudny 141700, Russia.
  • Markeev AM; Moscow Institute of Physics and Technology (National Research University), Institutskii per. 9, Dolgoprudny 141701, Moscow region, Russia.
ACS Omega ; 8(19): 16579-16586, 2023 May 16.
Article en En | MEDLINE | ID: mdl-37214699
Heterogeneous nanostructures composed of metastable tetragonal 1T-MoS2 and stable hexagonal 2H-MoS2 phases are highly promising for a wide range of applications, including catalysis and ion batteries, due to the high electrical conductivity and catalytic activity of the 1T phase. However, a controllable synthesis of stabilized 1T-MoS2 films over the wafer-scale area is challenging. In this work, a metal-organic chemical vapor deposition process allowing us to obtain ultrathin MoS2 films containing both 1T and 2H phases and control their ratio through rhenium doping was suggested. As a result, Mo1-xRexS2 films with a 1T-MoS2 fraction up to ≈30% were obtained, which were relatively stable under normal conditions for a long time. X-ray photoelectron spectroscopy and Raman spectroscopy also indicated that the 1T-MoS2 phase fraction increased with rhenium concentration increase saturating at Re concentrations above 5 at. %. Also, its concentration was found to significantly affect the film resistivity. Thus, the resistivity of the film containing approximately 30% of the 1T phase was about 130 times lower than that of the film without the 1T phase.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Omega Año: 2023 Tipo del documento: Article País de afiliación: Rusia Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Omega Año: 2023 Tipo del documento: Article País de afiliación: Rusia Pais de publicación: Estados Unidos