Silver Selenide

Silver Selenide particles are black or grey particles composed of silver and selenium, which have semiconductor properties as well as certain optical and electrical properties, and have potential applications in the field of photovoltaics and other fields.

Characteristics

Chemical formula: Ag₂Se

Molecular weight: 294.7

CAS No.: 1302-09-6

Appearance and form: usually grey cubic crystal or solid powder.

Density: 8.22 g/cm³ (at 25°C).

Melting point: 880°C.

Solubility: insoluble in water.

Sensitivity to humidity: easily absorbs moisture in the air, needs to be stored in a dry environment.

Optical properties: It has certain properties in optics and can be used in optical filters, solar cells and other fields.

Electrical properties: It is a semiconductor material with high conductivity and unique electrical properties, which makes it potentially useful in electronic devices, electrochemical storage and other applications.

Stability: It is relatively stable under certain conditions, but contact with strong oxidising agents should be avoided, otherwise chemical reactions may occur.

Applications

Semiconductor field:

Manufacture of electronic devices: silver selenide is an important semiconductor material that can be used in the manufacture of a variety of electronic devices, such as field effect transistors (FETs), diodes and so on. Its semiconductor properties enable it to control the flow of current and voltage changes in circuits, playing a key role in the normal operation of electronic devices.

Integrated circuits: In integrated circuits, silver selenide can be used as a functional material to build different parts of the circuit, which helps to improve the performance and integration of integrated circuits.

Optoelectronic field:

Infrared detectors: due to its good responsiveness to infrared light, silver selenide can be used to make infrared detectors. Infrared detectors have a wide range of applications in military, security, aerospace and other fields, such as for night surveillance, thermal imaging, missile guidance, etc.

Solar Cells: Silver selenide has potential applications in the field of solar cells. It can be used as the absorber layer material of solar cells to convert light energy into electricity and improve the photoelectric conversion efficiency of solar cells.

Optical filters: Using its absorption or reflection characteristics of specific wavelengths of light, it can be used to make optical filters for selecting or filtering specific wavelengths of light, which has important applications in the fields of optical communication and spectral analysis.

Thermoelectric field: silver selenide has certain thermoelectric properties, which can convert heat energy into electricity, and can be used to make thermoelectric conversion devices, such as thermoelectric generators and thermoelectric coolers. In some special application scenarios, such as waste heat recovery and local refrigeration, silver selenide-based thermoelectric devices have certain advantages.

Chemical and catalysis field: Due to its unique properties, silver selenide can be used as a catalyst in some chemical reactions, which can accelerate the reaction and improve the efficiency and selectivity of the reaction. For example, in some organic synthesis reactions, silver selenide can catalyse the formation or breaking of specific chemical bonds.

Scientific research: In the field of materials science, nanotechnology, solid state physics and other scientific research, silver selenide is often used to study the physical and chemical properties of materials and the development of various new materials. Through the study of silver selenide, researchers can gain a deeper understanding of the properties and behaviours of semiconductor materials and provide theoretical support for the development of related fields.