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Selective CW Laser Synthesis of MoS2 and Mixture of MoS2 and MoO2 from (NH4)2MoS4 Film.
Hurley, Noah; Bhandari, Bhojraj; Kamau, Steve; Gonzalez Rodriguez, Roberto; Squires, Brian; Kaul, Anupama B; Cui, Jingbiao; Lin, Yuankun.
Afiliación
  • Hurley N; Department of Physics, University of North Texas, Denton, TX 76203, USA.
  • Bhandari B; Department of Physics, University of North Texas, Denton, TX 76203, USA.
  • Kamau S; Department of Physics, University of North Texas, Denton, TX 76203, USA.
  • Gonzalez Rodriguez R; Department of Physics, University of North Texas, Denton, TX 76203, USA.
  • Squires B; Department of Physics, University of North Texas, Denton, TX 76203, USA.
  • Kaul AB; Department of Materials Science and Engineering, University of North Texas, Denton, TX 76203, USA.
  • Cui J; Department of Electrical Engineering, University of North Texas, Denton, TX 76203, USA.
  • Lin Y; Department of Physics, University of North Texas, Denton, TX 76203, USA.
Micromachines (Basel) ; 15(2)2024 Feb 09.
Article en En | MEDLINE | ID: mdl-38398986
ABSTRACT
Very recently, the synthesis of 2D MoS2 and WS2 through pulsed laser-directed thermolysis can achieve wafer-scale and large-area structures, in ambient conditions. In this paper, we report the synthesis of MoS2 and MoS2 oxides from (NH4)2MoS4 film using a visible continuous-wave (CW) laser at 532 nm, instead of the infrared pulsed laser for the laser-directed thermolysis. The (NH4)2MoS4 film is prepared by dissolving its crystal powder in DI water, sonicating the solution, and dip-coating onto a glass slide. We observed a laser intensity threshold for the laser synthesis of MoS2, however, it occurred in a narrow laser intensity range. Above that range, a mixture of MoS2 and MoO2 is formed, which can be used for a memristor device, as demonstrated by other research groups. We did not observe a mixture of MoS2 and MoO3 in the laser thermolysis of (NH4)2MoS4. The laser synthesis of MoS2 in a line pattern is also achieved through laser scanning. Due to of the ease of CW beam steering and the fine control of laser intensities, this study can lead toward the CW laser-directed thermolysis of (NH4)2MoS4 film for the fast, non-vacuum, patternable, and wafer-scale synthesis of 2D MoS2.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Micromachines (Basel) Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Micromachines (Basel) Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Suiza