Silver Selenide

Silver Selenide powder is a grey-black powder composed of silver and selenium with semiconductor properties and special physical properties such as light, electricity and heat, which has important applications in many high-tech fields.

Characteristics

Chemical formula: Ag₂Se

Molecular weight: 294.7 g/mol

Density: 8.22 g/cm³ (at 25℃)

Melting point: 880°C

Colour: usually grey-black

Morphology: usually needle-like crystals

Solubility: difficult to dissolve in water

Electrical and other properties: It is a semiconductor material with high electrical conductivity and low thermal conductivity, and has good thermoelectric properties near room temperature, which makes it potentially useful in fields such as thermoelectric conversion devices.

Applications

Semiconductor field:

Electronic component manufacturing: Its semiconductor properties allow it to be used in the manufacture of a variety of semiconductor devices, for example, as a semiconductor material in integrated circuits, to participate in the construction of key components in electronic circuits, and for the transmission, control and processing of electronic signals.

Sensor applications: It can be used to manufacture temperature sensors, pressure sensors, gas sensors, etc. For example, using its electrical properties that vary with environmental factors, it detects changes in temperature, pressure, or concentration of specific gases, and converts physical quantities into electrical signals for measurement and monitoring.

Optoelectronic field:

Infrared detectors: silver selenide has a high sensitivity to infrared light and can be used to manufacture infrared detectors, which are widely used in military, security, aerospace and other fields for detecting and identifying infrared radiation from target objects.

Optical devices: In the manufacture of some optical devices, such as optical filters, light modulators, etc., silver selenide can give play to its unique optical properties and modulate the propagation and characteristics of light.

Photovoltaic field: It has potential applications in the research of solar cells because it has the ability to convert light energy into electricity. Although it is still in the research stage, it is expected to be a new type of photovoltaic material in the future to improve the efficiency and performance of solar cells.

Thermoelectric field: With its good thermoelectric properties, it can be used in the manufacture of thermoelectric conversion devices to convert heat energy into electrical energy. For example, in the fields of industrial waste heat recovery and solar thermal power generation, the use of silver selenide’s thermoelectric conversion properties can improve the efficiency of energy use and reduce energy waste.

Chemical and catalytic field: Due to its unique chemical properties and semiconductor behaviour, it is sometimes used as a catalyst for chemical reactions. For example, in some organic synthesis reactions, silver selenide can promote the reaction and improve the rate and selectivity of the reaction.

Scientific research: Silver selenide powder is often used in basic research in many fields of scientific research, such as materials science, nanotechnology, and solid state physics. By studying the physical and chemical properties of silver selenide, scientists explore its new applications and properties, providing theoretical support and technical reserves for the development of related fields.