Germanium Sulfide

GeS powder is germanium sulfide powder.

Basic information:

Chemical formula: GeS

Molecular weight: 105.67

Appearance: Usually black or dark grey powder.

Crystal structure: It has a layered structure, similar to the atomic fold structure of black phosphorus.

Band gap: is a semiconductor material with a band gap in the visible light region (about 1.65-1.8 eV).

Melting point and boiling point: The melting point is relatively high, and the specific value may vary due to factors such as preparation method and purity; Data on boiling points are relatively rare.

Chemical properties:

Stability: Relatively stable at room temperature, but chemical reactions may occur in high temperature, humid air or specific chemical environments. For example, when heated in air, it may be oxidized to produce substances such as the oxides of germanium and sulfur dioxide.

Reactivity: can react with some strong oxidants, reducing agents or specific chemicals, the specific reaction depends on the reaction conditions and the nature of the reactants.

Preparation method:

Direct synthesis method: GeS powder can be prepared by mixing germanium powder and sulfur powder in a certain proportion and reacting under high temperature and high pressure. During the reaction process, parameters such as temperature, pressure and reaction time need to be strictly controlled to ensure the purity and quality of the product.

Chemical vapor deposition method: using germanium compounds and sulfur compounds as precursors, GeS films or powders are grown on the substrate by chemical vapor deposition under certain temperature and atmosphere conditions.

Application field:

Semiconductor field: Due to its semiconductor properties, Germanium Sulfide powder can be used to prepare various semiconductor devices, such as photodetectors, solar cells, etc.

Materials Science Research: As a new type of layered material, Germanium Sulfide powder is receiving attention in materials science research, with researchers working to explore its unique physical and chemical properties, as well as potential applications.

Energy storage field: In lithium-ion batteries, sodium-ion batteries and other energy storage devices, GeS as an electrode material has certain application potential, and its layered structure can provide space for the insertion and removal of ions, so as to achieve charge storage and release.