Structural and optical characterization of stacked MoS2 nanosheets by hydrothermal method

Direct or Indirect Sonication in Ecofriendly MoS2 Dispersion for NO2 and NH3 Gas-Sensing Applications

“…X-ray Diffraction of MoS 2 powder crystal and exfoliated MoS 2 through bath and probe sonication was performed at room temperature in the 2θ range between 5 and 80°. As reported previously in ref ( 25 ), the intensity of the (002) peak after exfoliation is lower than in the bulk material due to the exfoliation process. From Figure 2 , and after compensating for the instrument effect, we extracted the interplanar distance “ d ” of the (002) plane using the PDF card number 00-037-1492 and the Bragg equation d = n λ/2 sin θ, where “ d ” represents the atomic plane spacing, “ n ” stands for the diffraction order, “λ” denotes the incident radiation wavelength, and “θ” signifies the diffraction angle.…”

Polydopamine decorated MoS2 nanosheet based electrochemical immunosensor for sensitive detection of SARS-CoV-2 nucleocapsid protein in clinical samples

“…Further, the interplanar spacing was calculated using the Bragg equation, 61 2 d sin θ = nλ , where d is the interplanar spacing, θ is the Bragg diffraction angle, n is the diffraction order (here, 1), and λ is the wavelength of the Cu Kα X-rays (1.54 Å). The calculated interplanar spacings for the four characteristic planes (002), (100), (103), and (110) are 0.619, 0.27, 0.22, and 0.15 nm respectively.…”

“…59 It is important to note that the lower intensity of the (002) diffraction peak indicated a low stacking height, which is vital for providing more active sites for electrochemical measurements. 60 Further, the interplanar spacing was calculated using the Bragg equation, 61 2d sin y = nl, where d is the interplanar spacing, y is the Bragg diffraction angle, n is the diffraction order (here, 1), and l is the wavelength of the Cu Ka X-rays (1.54 Å). The calculated interplanar spacings for the four characteristic planes (002), (100), (103), and (110) are 0.619, 0.27, 0.22, and 0.15 nm respectively.…”

Broad band modulation of two-dimensional Mo1-x W x S2 by variational compositions

“…Two-dimensional (2D) layered transition metal dichalcogenides (TMDCs) have garnered considerable attentions in recent years due to their unique structures and optoelectronic properties, such as layer-dependent band structures, large exciton binding energies, strong light-matter interactions, and so on [1][2][3][4][5][6][7][8]. Significant efforts including hydrothermal method, mechanical exfoliation, liquid-phase exfoliation and chemical vapor deposition (CVD) method have been proposed to prepare TMDCs [9][10][11][12][13]. Among which, CVD technique is considered as one of the most promising methods for synthesizing TMDCs with large-area, controllable thickness, and high quality.…”