Performance Of SnS Research Articles

Hydrothermal synthesis of NiS2@SnS2 nanohybrid for the water splitting application

The potential capabilities of stannous sulphide (SS) in the domain of the hydrogen evolution process (HER) have attracted significant interest. By employing a straightforward single-step hydrothermal method, we successfully boosted the HER performance of SnS2. This was achieved by fabricating a nanocomposite consisting of nickel sulphide (NS) and tin sulphide (SS) nanostructure. The resulting NS@SS nanocomposite shows the superior electrocatalytic behavior for the HER compared to pristine NS and SS material. The composite exhibited a morphology with two distinct phases, such as nanoparticles and nanorod structures that are responsible for good electrochemical properties. The NS@SS nanocomposite has several advantages for enhancing HER electroactivity, including a greater active surface area, increased edge-terminated structures, and better conductivity. The catalyst has high stability in alkaline solutions and demonstrates a low overpotential (ɳ) of 155 mV@ 10 mA cm−2 with a Tafel slope of 34 mV dec−1. The current results show that the NS@SS nanocomposites are a potential candidate for the energy production materials and energy conversion system.

Investigation of hybrid SnSe/SnS bilayer absorber for application in solar cells

The vapor-transport deposition of SnS and SnSe can help achieve low-cost and scalable photovoltaic devices. However, the performance of SnS- and SnSe-based solar cells is limited by shunt losses and low open-circuit voltage. Single SnS absorber based solar cells exhibit a high open-circuit voltage and low short-circuit current density, whereas single SnSe based solar cells demonstrate higher short-circuit current and low open-circuit voltage. In this study, we introduce a hybrid bilayer absorber configuration combining SnSe and SnS and fabricate a solar cell device using this structure (Mo/SnSe/SnS/CdS/ZnO/AZO/Al). Specifically, we establish this bilayer absorber configuration and a heterojunction device using CdS as the buffer layer. The bilayer-absorber-based device exhibits a higher open-circuit voltage than SnS based devices, along with a short-circuit current density comparable to those of SnSe based device. The optimal device featuring the bilayer absorber exhibits an efficiency of 3.65%, representing a considerable improvement over single SnS (2.87%) and SnSe (1.4%) absorber-based solar cells.

Wafer‐Scale PLD‐Grown High‐κ GCZO Dielectrics for 2D Electronics

AbstractOxide dielectrics, such as HfO2, Al2O3, etc, are widely used to improve the performance of 2D semiconductors in electronic devices. However, future low‐power electronic devices need a higher dielectric constant (κ) to reduce the leakage current, and these super‐high‐κ materials are challenging to produce on wafer‐scale. Here, the preparation of wafer‐scale (Ga, Cu) co‐doping ZnO films is reported with super‐high dielectric constant (κ > 50) and good homogeneity by a pulsed laser deposition method. By regulating the (Ga, Cu) co‐doping concentration, the dielectric constants can range from 9 to 207. In addition, the performance of SnS2 field‐effect transistor reveals that the high‐κ Al2O3/GCZO gate dielectric stack is suitable for 2D electronic devices. This GCZO dielectric films not only show higher κ than other conventional dielectrics in terms of compatibility to CMOS processes, but also keep their comparative advantages in the fabrication of high‐performance electronic devices over conventional dielectrics.

Improved Performance of Rechargeable Li‐O2 Batteries with Plate‐like SnS2 as Efficient Cathode Catalyst

AbstractLayer‐structured SnS2 powders with plate‐like and flower‐like morphologies have been successfully synthesized through a facile hydrothermal method with different sources of sulfur. Their potential application as cathode catalysts of rechargeable Li−O2 batteries were electrochemically evaluated and analyzed with diverse physicochemical techniques. The results reveal that both SnS2 materials are capable of catalyzing oxygen reduction reaction as well as oxygen evolution reaction in the cathode of Li−O2 batteries, while the plate‐like ones perform much better. Moreover, the performance of SnS2 is also comparatively discussed with the opponent of tin oxides to identify the superiority of transition metal sulfides to transition metal oxides as cathode catalysts of Li−O2 batteries.

Preparation and Photovoltaic Performance of SnS Sensitized Nanocrystallite TiO2 Photoanode

Preparation and Photovoltaic Performance of SnS Sensitized Nanocrystallite TiO2 Photoanode

Particle size and performance of SnS 2 anodes for rechargeable lithium batteries

We have proposed SnS 2 as promising Li-ion battery anode materials in our previous study. Nanoparticles of this material were synthesized by a sonochemical method. In this work, smaller SnS 2 particles were obtained by diluting the starting solution of the synthesis, and particles of 30 nm were observed in the Field Emission SEM (FE-SEM) images. From such SnS 2 particles, higher discharge capacity of 620 mAh/g and suppressed electrode degradation were observed in charge–discharge experiments. This indicates that the enlargement of the surface area was effective in facilitating the Li-ion diffusion through the active material, in simplifying the electrochemical reaction and in restraining the stress within the electrode, caused during charge and discharge. The discharge capacity in the 30th cycle was improved from 319 to 404 mAh/g by annealing the sample. It is suggested that this may be due to the change in its structure.