Omar Salih Omar^*

Journal of Renewable Materials, Vol.10, No.7, pp. 1979-1988, 2022, DOI:10.32604/jrm.2022.018765 - 07 March 2022

Abstract Monolayer MoS₂ has a promising optoelectronics property, with a bandgap in the visible range; the material is a potential candidate for solar cell applications. In this work, we grew MoS₂ monolayers using a low-pressure chemical vapor deposition approach. To produce uniform wafer-scale MoS₂ monolayer films, precursors molybdenum dioxide (MoO₂) and sulfur (S) are utilized. Atomic force microscopy was used to quantify the thickness of the monolayers, and the result was validated by Raman spectroscopy. Transmission electron microscopy (TEM) was used to confirm the crystalline quality of the monolayers, and photoluminescence spectroscopy was used to evaluate their optical More >

Reza Khademi Zahedi¹, Naif Alajlan², Hooman Khademi Zahedi³, Timon Rabczuk^2,*

CMC-Computers, Materials & Continua, Vol.70, No.3, pp. 4635-4655, 2022, DOI:10.32604/cmc.2022.017682 - 11 October 2021

Abstract The outstanding thermal, optical, electrical and mechanical properties of molybdenum disolphide (MoS₂) heterostructures make them exceptional candidates for an extensive area of applications. Nevertheless, despite considerable technological and academic interest, there is presently a few information regarding the mechanical properties of these novel two-dimensional (2D) materials in the presence of the defects. In this manuscript, we performed extensive molecular dynamics simulations on pre-cracked and pre-notched all-molybdenum disolphide (MoS₂) heterostructure systems using ReaxFF force field. Therefore, we study the influence of several central-crack lengths and notch diameters on the mechanical response of 2H phase, 1T phase and… More >

Mayyadah H. Mohsin¹, Najwan H. Numan², Evan T. Salim^1,*, Makram A. Fakhri^2,*

Journal of Renewable Materials, Vol.9, No.9, pp. 1519-1530, 2021, DOI:10.32604/jrm.2021.015465 - 23 April 2021

Abstract A SiC nanofilms have been deposited and investigated on quartz and silicon substrates using pulsed laser deposition technique with the 300 pulses of Nd: YAG laser at two different laser wavelengths of 1064 nm and 532 nm. The structural, morphological, and optical properties of the deposited nanostructure SiC were prepared and characterized as a function of the wavelengths of the used laser. The structural result shows four different pecks at (111), (200), (220), and (311) planes related to Nano SiC. The transmission result presents that the optical energy gap value for the SiC nanostructure is More > Graphic Abstract