related to the bonding hybridization with its nearest-neighbor atoms. In this experiment, Fe atoms were doped by substituting Sn sites (Fig.1g), and each Fe atom is surrounded by six S atoms to form an octahedral coordination. The oxidation state of the Fe atom should be +4, leading to ...
4(a), showed the presence of Sn 3d, S 2p, C 1s, O 1s, P 2p and Ca 2p in SnS2/HAp nanocomposite. The presence of carbon in the SnS2/HAp was due to the carbonaceous functional groups attached to the surface of the nanocomposite during the fabrication of SnS2 using leaf extract20....
However, a drastic depression in the surface area of g-C3N4 by 80% for the sample prepared by the physical mixing method revealed the agglomeration of SnS2 nanoparticles on g-C3N4 sheets. Although the adsorption–desorption isotherm is completely reversible, the corresponding Va–t plot indicated ...
we expect that the indirect band gap and additional band edge in SnS2-C, whereas maximize photon absorption, will also affect the electron-hole pair’s lifetime, which is beneficial for charge carrier to participate in the surface photocatalytic application. ...
The fundamental building block of the SILAR method is adsorption, which can be defined as the collection of a substance on the surface of another substance[2]. Solid surfaces are considered to have active sites with different energies as opposed to the adjacentliquid phase[1]. Such energetically...
surface. The powder collected was dispersed in IPA, sonicated for about 10 minutes and dropped onto carbon coated copper grids. The surface morphology of the films, roughness and thickeness were determined using non-contact mode AFM (A.P.E. Research A100-AFM). Veeco Dektak 6 M surface ...
The 2D nature of mica also facilitates easy cleavage of the substrate and provides an atomically flat, electrically insulating, and optically transparent surface for the vdW epitaxial growth of SnS13–15. The temperature ramp rate of the K-cell was set at 10 °C/min with the lip and base...
as the distance between the gate oxide surface and the channel increases47. In other words, a large leakage current flows through the expanding undepleted parts as the channel thickness increases, leading to a poor on/off ratio. In this respect, the high on/off ratio in our devices implies...
With increasing χ, more photocatalysis occurs on the SnS surface, which has a lower efficiency than that on TiO2. The reduction in SnS bandgap energy increases the generation of electron–hole pairs, but the upward shift of the VBM decreases the oxidative power of holes to some extent. ...
The SnS2 films were stacked over each other and formed bulk geometry, as shown in Figure 3d. The SEM micrographs show the formation of bulk SnS2 crystal geometries stacked regularly, as well as a fairly uniform surface morphology. Total reflection X-ray fluorescence spectroscopy (TXRF) is an ...